Tuesday, December 25, 2018
Monday, December 24, 2018
PT -2 Social Science Worksheets
WORKBOOK SHEETS :
Education and the Colonial Rule
https://drive.google.com/file/d/1PHOHIzSZsT5RNHTZcA05FtikPtRVdGyo/view
https://drive.google.com/file/d/1PHOHIzSZsT5RNHTZcA05FtikPtRVdGyo/view
Generated Resources- Case Studies
https://drive.google.com/file/d/1mk4UfDg6nGDBa6OEWYRBLKH7apih7NAK/view
https://drive.google.com/file/d/1mk4UfDg6nGDBa6OEWYRBLKH7apih7NAK/view
English revision question Bank 3
Section A
1 Read the passage given below and answer the questions that follow:
1. The bald eagle or the American eagle is the national symbol of The United
States of America. The bald eagle is a raptor or a bird of prey. Raptors such
as eagles, owls and hawks catch and eat small animals or other birds.
2. Early American pioneers (people who transformed the wilderness in the
USA into settlements) felt that birds of prey need to be destroyed because
they ate birds, fish and animals that were food for the settlers. During
World War II, the pesticide DDT was used to treat typhus and malaria,
saving thousands of human lives. In the 1940s, farmers across the United
States began spraying DDT on vast acres of crops to kill insects and other
pests. DDT affected the raptors seriously. DDT caused the shells of bald
eagle eggs to be too thin for baby eaglets to hatch, causing eagle numbers
to decline.
3. Eagles were eventually placed on the endangered species list. DDT was
banned in 1972 because of its negative impact on the environment. Slowly,
the number of eagles and other birds increased. Since 1985, the American
Eagle Foundation has worked with the Dollywood Theme Park at Pigeon
Forge, Tennessee, towards the conservation of the eagle population and educating the public about raptors.
1.1 Attempt any four of the following questions on the basis of the passage that
you have read.
(a) What is the national symbol of the USA?
The bald eagle or the American eagle is the national symbol of the USA.
(b) Why did the Early American pioneers feel that the birds of prey needed to be
destroyed?
Early American pioneers felt that birds of prey needed to be destroyed because they ate birds, fish and animals that were food for the settlers.
(c) How did the pesticide DDT save thousands of human lives during World War
II?
During World War II, the pesticide DDT was used to treat typhus and
malaria which helped to save thousands of human lives.
(d) How did farmers across the United States use DDT?
Farmers across the United States used DDT on vast acres of crops to kill
insects and other pests.
(e) Which word in paragraph no. 4 means the same as ‘disallowed’?
banned
2. Read the passage given below.
1. I was born with a silver spoon in my mouth I should say as I inherited quite
a lot of wealth from my father. As a young lad, I enjoyed myself with friends
but was soon bored with the same friends and parties all the year round.
The sea was calling me on one hand and there was an intense desire to
trade with people of different places.
2. So I decide to go on my first voyage with a group of traders. When the sky
was clear one fine morning, we set sail from Baghdad to the Indian Ocean
with a company of traders. From many days we did not see any land.
Finally, one morning, when I was at the dining table, I heard the captain
shout, ‚Hurray! Land, land.‛ We were thrilled that we could drop anchor for
a while. We examined the island from the ship and found it deserted. But it
was beautiful with a clump of trees and grass.
3. All my inmates rushed to the island. Some lit fires, some started to cook
and others washed and dried their clothes. I sat under a tree and after a
while dozed off to sleep. Suddenly, the captain of the ship cried aloud,
‚Leave everything as it is and run for your lives. That’s no island but a huge
whale that has been resting for quite some months in the same position.
On its back sand has settled because it has been immobile for quite some
months. Trees have grown on it and it seemed like an island.‚ Most of them
jumped into the sea and swam to the ship. By the time I could reach the ship, it had left the shore.
2.1 On the basis of your reading the passage, answer any two of the following
questions in about 30 – 40 words each:
i. Describe the narrator’s early life.
The narrator had inherited quite a lot of wealth from his father. As a
young lad, he enjoyed himself with his friends but was soon bored with
the same friends and parties all the year round.
ii. What drove the narrator to set sail?
The narrator felt the sea calling him and he had an intense desire to trade
with people of different places. This drove him to set sail on his first
voyage with a group of traders.
iii. What did the narrator and his friend do after reaching the island?
When the narrator and his friend reached the island, some of them lit
fires, some started to cook and others washed and dried their clothes. The
narrator sat under a tree and after a while dozed off to sleep.
2.2 On the basis of your reading the passage, fill any one of the following blanks
with appropriate words/phrases.
i. That’s no island but a huge whale that has been resting for quite some
months in the same position.
ii. By the time the narrator could reach the ship, it had left the shore.
2.3 Attempt any one of the following. Find out the words that mean the same as
below:
i. unoccupied (para 2)
deserted
ii. motionless (para 3)
immobile 3. (a) You visited your local district library. Describe the place in about 100-150
words.
(b) You are Devika/Divakar Singh, in charge of the Science Club of your school-
Kalamandir Vidya High School, Kalka, Himachal Pradesh. Write a letter to Mesa
Kumar Suppliers, Solan, Baddi, Himachal Pradesh requesting quotations for
Chemistry laboratory equipment like pyrex jars, test tubes, heater, tongs, litmus
paper, etc. in 100-120 words. Ask for discount for bulk orders as well as for use
in educational institutions.
(c) Write an article in 100-150 words on ‘The importance of being thrifty’.
(d) Write a short story, in about 100-150 words with the set of cues given below.
They can appear anywhere in the story. Give a suitable title to the story.
Rami was angry, ‚This is the third time this week…‛
Kiran looked at the punctured back tyres of both their bicycles, ‚What would
anybody want… why…‛ she shook her head in disbelief.
Vihaan came rushing from the next street, ‚Guys, yours too… this has to stop…
we will catch this prankster….lets plan….‛
4. Fill in the following blanks choosing the most appropriate option from the
ones given below.
(a) Baby Ben can’t talk properly ________ he is very good at crawling off and hiding.
He has been hiding ________ a lilac tree looking at a little bird. Nicholas is
worried because he has lost sight of him ________.
a. (i) but (ii) or (iii) otherwise (iv) as well as
b. (i) above (ii) on (iii) upon (iv) behind
c. (i) seldom (ii) again (iii) never (iv) ever
. In the following passage one word has been omitted in each line. Write the missing word, along with the word that comes before and the word that comes after it in the space provided.
a. Educationists today overwhelmingly b. concerned the future of youngsters.
c. The most common complaints are students
d. don’t study; they are just interested in it.
e. Some blame exposure social networking
f. sites, others feel that the present generation not
g. serious enough. The CBSE expresses this
concern reviewing
h. the syllabus time to time.
Before Missing After
Word is
today are overwhelmingly
concerned about the
are that students
just not interested
exposure to social
generation. is not
concern by . reviewing
syllabus . from time
6. Do as Directed:
(a) Join the following sentences with a conjunction.
She has plenty of money. She is a miser.
She has plenty of money but she is a miser.
(b) Change the given sentence into indirect speech.
Mrs. Mehra said to Rohan, ‛We will go shopping tomorrow to get whatever you
need for your camping trip.‛
Mrs. Mehra told Rohan that they would go shopping the next day to get
whatever he needed for his camping trip.
(c) Fill in the blank with an appropriate preposition.
The Annual Day is scheduled to take place on 17th December.
(d) Rewrite the sentence by inserting the adverb given in the brackets correctly.
That is a misprint in the news report. (probably)
That is probably a misprint in the news repo
7. Read the extract and answer the questions that follow. Write the answer in
your answer sheet in one or two lines only.
The Inchcape Rock
(a) Sir Ralph the Rover tore his hair
He cursed himself in his despair
The waves rushed in on every side
The ship is sinking beneath the tide
i. Why was Sir Ralph in despair?
Sir Ralph was in despair because his ship was sinking and he could do
nothing about it.
ii. Why was the ship sinking?
The ship was sinking because it had struck against the Inchcape Rock.
(b) ‘When the Rock was hid by the surge’s swell
The mariners heard the warning bell;
And then they knew the perilous Rock,
And blest the Abbot of Aberbrothok.
i. How was the ‘Inchape Rock’ sometimes hidden?
The ‘Inchape Rock’ sometimes remained hidden under sea water during
the high tide.
ii. Why was the warning bell placed on the Inchcape rock?
The warning bell was placed on the Inchcape Rock to prevent the sailors
from colliding with the rock.
Where Love Is God Is
(a) ‚Why, bless me, I‘ve had children of my own; I know how to manage them.‛ The
woman sat eating and drinking. ‚I’m a soldier’s wife,‛ said she.
i. How was Martin able to mind the baby
Martin was able to mind the baby because he had experience managing
his own children.
ii. What had happened to the woman’s husband?
The woman’s husband was a soldier who was sent somewhere far away
eight months ago and she had heard nothing of him since.
(b) ‚God bids us forgive,‛ said Martin, ‚or else we shall not be forgiven. Forgive
every one; and a thoughtless youngster most of all.‛
i. What had the thoughtless youngster done?
The thoughtless youngster had stolen an apple.
ii. According to Martin, why is it important to forgive?
According to Martin, it is important to forgive so that we may be forgiven
by God for our sins.
8 Answer any four of the following questions in 30 to 40 words each.
The Inchcape Rock
a. How was Ralph, the Rover responsible for his fate?
Sir Ralph was a wicked man who cut off the bell that warned people
against the Inchcape Rock. Once during a storm in the sea, his ship
crashed against the same rock. Thus, he was very well responsible for his
own fate.
b. How did the warning bell ring?
The warning bell was placed on a buoy and during high tide the
movement of waves made the buoy to float and in turn rang the bell and
warned the sailors.
c. What did the sailors wished for and why?
The sailors wished that they could hear the Inchcape Rock. The ringing of
the bell would have indicated the presence of the perilous rock and thus
saved the ship from colliding with it.
d. What was placed on the Inchcape Rock? Who had done so?
The Abbot of Aberbrothok had placed the bell on a buoy, on the Inchcape
Rock. He had done so to warn the mariners of the perilous Rock when
there was a storm at sea.
Where Love Is God Is
a. What advice did Martin get from an old pilgrim?
The old man told him that he had no right to wish for his death. He should
live for God as God gives life to us and wants us to live for him. The way
will be shown by Christ.
b. What kind of a person was Martin?
Martin Avdeiteh was a cobbler. He had lived so long in a place that he
recognized people by their boots. He was a hard worker, used good
material, did not charge too much and could be relied on.
c. Why Martin’s soul did grow glad?
The soul grew glad, when he realized that the people who he had helped
the day before were all messengers of God. He realized that all the good
deeds that he did the day before were in fact done for the God.
d. How did Martin convince the apple-woman to pardon the boy?
He told her that God’s way is more kind. God would not want the boy to
be whipped. If the boy should be whipped for stealing the apple, then our
sins are far greater.
9. Answer the following questions in about 100-120 words.
a. Describe Professor Summerlee and Lord Roxton.
Even though Professor Summerlee was sixty six years old, he was well
equipped for the expedition. He had never expressed any dissatisfaction
at the occasional hardships the group of explorers had encountered. From
the beginning, he had never concealed the belief that Professor Challenger
was an absolute fraud. He only spoke of these views from England to
Manaos. He was tall, skinny and had a stringy figure. He could be characterized by a few peculiarities such as his careless attitude towards
his attire, absent mindedness in his habits, and an addiction to smoking a
short hair pipe.
Lord Roxton was twenty years younger than Mr. Summerlee. In his ways,
he was extremely prim and proper, dressed with care in white suits and
high brown boots, and shaved at least once a day. His knowledge of the
world, especially South America was amazing. He had tremendous belief
in the possibilities of their journey. He spoke little of his own exploits in
Brazil and Peru but it generated a lot of excitement among the Indians
they encountered. His former experiences enabled him to converse
fluently in Lingua Geral which was one third Portuguese, two thirds Indian
and spoken all over Brazil.
b. Describe the explorers’ journey on the river.
For two days the explorers sailed up the river, hundred yards broad, dark
in colour but transparent so that one could see the bottom. They were
surrounded by mystery. The height of the trees and the thickness of their
trunk was something the narrator had ever seen before. Vivid orchids and
wonderful coloured lichens smoldered upon the tree trunks. There was no
real movement of any animal life except the monkeys, snakes and birds
who lived in the sunshine and looked down at their tiny stumbling figures.
On the third day, Professor Challenger said that he had chosen the Assai
palm as his landmark. The secret opening was about half a mile on the
other side of the river. There was no break in the trees. The thick
vegetation met overhead into natural tunnel and throughout this tunnel
of greenery flowed a marvellous river. They made their way down this
river for three days. However, on the third day they bid their canoes
farewell as the river was growing shallower.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
1 Read the passage given below and answer the questions that follow:
1. The bald eagle or the American eagle is the national symbol of The United
States of America. The bald eagle is a raptor or a bird of prey. Raptors such
as eagles, owls and hawks catch and eat small animals or other birds.
2. Early American pioneers (people who transformed the wilderness in the
USA into settlements) felt that birds of prey need to be destroyed because
they ate birds, fish and animals that were food for the settlers. During
World War II, the pesticide DDT was used to treat typhus and malaria,
saving thousands of human lives. In the 1940s, farmers across the United
States began spraying DDT on vast acres of crops to kill insects and other
pests. DDT affected the raptors seriously. DDT caused the shells of bald
eagle eggs to be too thin for baby eaglets to hatch, causing eagle numbers
to decline.
3. Eagles were eventually placed on the endangered species list. DDT was
banned in 1972 because of its negative impact on the environment. Slowly,
the number of eagles and other birds increased. Since 1985, the American
Eagle Foundation has worked with the Dollywood Theme Park at Pigeon
Forge, Tennessee, towards the conservation of the eagle population and educating the public about raptors.
1.1 Attempt any four of the following questions on the basis of the passage that
you have read.
(a) What is the national symbol of the USA?
The bald eagle or the American eagle is the national symbol of the USA.
(b) Why did the Early American pioneers feel that the birds of prey needed to be
destroyed?
Early American pioneers felt that birds of prey needed to be destroyed because they ate birds, fish and animals that were food for the settlers.
(c) How did the pesticide DDT save thousands of human lives during World War
II?
During World War II, the pesticide DDT was used to treat typhus and
malaria which helped to save thousands of human lives.
(d) How did farmers across the United States use DDT?
Farmers across the United States used DDT on vast acres of crops to kill
insects and other pests.
(e) Which word in paragraph no. 4 means the same as ‘disallowed’?
banned
2. Read the passage given below.
1. I was born with a silver spoon in my mouth I should say as I inherited quite
a lot of wealth from my father. As a young lad, I enjoyed myself with friends
but was soon bored with the same friends and parties all the year round.
The sea was calling me on one hand and there was an intense desire to
trade with people of different places.
2. So I decide to go on my first voyage with a group of traders. When the sky
was clear one fine morning, we set sail from Baghdad to the Indian Ocean
with a company of traders. From many days we did not see any land.
Finally, one morning, when I was at the dining table, I heard the captain
shout, ‚Hurray! Land, land.‛ We were thrilled that we could drop anchor for
a while. We examined the island from the ship and found it deserted. But it
was beautiful with a clump of trees and grass.
3. All my inmates rushed to the island. Some lit fires, some started to cook
and others washed and dried their clothes. I sat under a tree and after a
while dozed off to sleep. Suddenly, the captain of the ship cried aloud,
‚Leave everything as it is and run for your lives. That’s no island but a huge
whale that has been resting for quite some months in the same position.
On its back sand has settled because it has been immobile for quite some
months. Trees have grown on it and it seemed like an island.‚ Most of them
jumped into the sea and swam to the ship. By the time I could reach the ship, it had left the shore.
2.1 On the basis of your reading the passage, answer any two of the following
questions in about 30 – 40 words each:
i. Describe the narrator’s early life.
The narrator had inherited quite a lot of wealth from his father. As a
young lad, he enjoyed himself with his friends but was soon bored with
the same friends and parties all the year round.
ii. What drove the narrator to set sail?
The narrator felt the sea calling him and he had an intense desire to trade
with people of different places. This drove him to set sail on his first
voyage with a group of traders.
iii. What did the narrator and his friend do after reaching the island?
When the narrator and his friend reached the island, some of them lit
fires, some started to cook and others washed and dried their clothes. The
narrator sat under a tree and after a while dozed off to sleep.
2.2 On the basis of your reading the passage, fill any one of the following blanks
with appropriate words/phrases.
i. That’s no island but a huge whale that has been resting for quite some
months in the same position.
ii. By the time the narrator could reach the ship, it had left the shore.
2.3 Attempt any one of the following. Find out the words that mean the same as
below:
i. unoccupied (para 2)
deserted
ii. motionless (para 3)
immobile 3. (a) You visited your local district library. Describe the place in about 100-150
words.
(b) You are Devika/Divakar Singh, in charge of the Science Club of your school-
Kalamandir Vidya High School, Kalka, Himachal Pradesh. Write a letter to Mesa
Kumar Suppliers, Solan, Baddi, Himachal Pradesh requesting quotations for
Chemistry laboratory equipment like pyrex jars, test tubes, heater, tongs, litmus
paper, etc. in 100-120 words. Ask for discount for bulk orders as well as for use
in educational institutions.
(c) Write an article in 100-150 words on ‘The importance of being thrifty’.
(d) Write a short story, in about 100-150 words with the set of cues given below.
They can appear anywhere in the story. Give a suitable title to the story.
Rami was angry, ‚This is the third time this week…‛
Kiran looked at the punctured back tyres of both their bicycles, ‚What would
anybody want… why…‛ she shook her head in disbelief.
Vihaan came rushing from the next street, ‚Guys, yours too… this has to stop…
we will catch this prankster….lets plan….‛
4. Fill in the following blanks choosing the most appropriate option from the
ones given below.
(a) Baby Ben can’t talk properly ________ he is very good at crawling off and hiding.
He has been hiding ________ a lilac tree looking at a little bird. Nicholas is
worried because he has lost sight of him ________.
a. (i) but (ii) or (iii) otherwise (iv) as well as
b. (i) above (ii) on (iii) upon (iv) behind
c. (i) seldom (ii) again (iii) never (iv) ever
. In the following passage one word has been omitted in each line. Write the missing word, along with the word that comes before and the word that comes after it in the space provided.
a. Educationists today overwhelmingly b. concerned the future of youngsters.
c. The most common complaints are students
d. don’t study; they are just interested in it.
e. Some blame exposure social networking
f. sites, others feel that the present generation not
g. serious enough. The CBSE expresses this
concern reviewing
h. the syllabus time to time.
Before Missing After
Word is
today are overwhelmingly
concerned about the
are that students
just not interested
exposure to social
generation. is not
concern by . reviewing
syllabus . from time
6. Do as Directed:
(a) Join the following sentences with a conjunction.
She has plenty of money. She is a miser.
She has plenty of money but she is a miser.
(b) Change the given sentence into indirect speech.
Mrs. Mehra said to Rohan, ‛We will go shopping tomorrow to get whatever you
need for your camping trip.‛
Mrs. Mehra told Rohan that they would go shopping the next day to get
whatever he needed for his camping trip.
(c) Fill in the blank with an appropriate preposition.
The Annual Day is scheduled to take place on 17th December.
(d) Rewrite the sentence by inserting the adverb given in the brackets correctly.
That is a misprint in the news report. (probably)
That is probably a misprint in the news repo
7. Read the extract and answer the questions that follow. Write the answer in
your answer sheet in one or two lines only.
The Inchcape Rock
(a) Sir Ralph the Rover tore his hair
He cursed himself in his despair
The waves rushed in on every side
The ship is sinking beneath the tide
i. Why was Sir Ralph in despair?
Sir Ralph was in despair because his ship was sinking and he could do
nothing about it.
ii. Why was the ship sinking?
The ship was sinking because it had struck against the Inchcape Rock.
(b) ‘When the Rock was hid by the surge’s swell
The mariners heard the warning bell;
And then they knew the perilous Rock,
And blest the Abbot of Aberbrothok.
i. How was the ‘Inchape Rock’ sometimes hidden?
The ‘Inchape Rock’ sometimes remained hidden under sea water during
the high tide.
ii. Why was the warning bell placed on the Inchcape rock?
The warning bell was placed on the Inchcape Rock to prevent the sailors
from colliding with the rock.
Where Love Is God Is
(a) ‚Why, bless me, I‘ve had children of my own; I know how to manage them.‛ The
woman sat eating and drinking. ‚I’m a soldier’s wife,‛ said she.
i. How was Martin able to mind the baby
Martin was able to mind the baby because he had experience managing
his own children.
ii. What had happened to the woman’s husband?
The woman’s husband was a soldier who was sent somewhere far away
eight months ago and she had heard nothing of him since.
(b) ‚God bids us forgive,‛ said Martin, ‚or else we shall not be forgiven. Forgive
every one; and a thoughtless youngster most of all.‛
i. What had the thoughtless youngster done?
The thoughtless youngster had stolen an apple.
ii. According to Martin, why is it important to forgive?
According to Martin, it is important to forgive so that we may be forgiven
by God for our sins.
8 Answer any four of the following questions in 30 to 40 words each.
The Inchcape Rock
a. How was Ralph, the Rover responsible for his fate?
Sir Ralph was a wicked man who cut off the bell that warned people
against the Inchcape Rock. Once during a storm in the sea, his ship
crashed against the same rock. Thus, he was very well responsible for his
own fate.
b. How did the warning bell ring?
The warning bell was placed on a buoy and during high tide the
movement of waves made the buoy to float and in turn rang the bell and
warned the sailors.
c. What did the sailors wished for and why?
The sailors wished that they could hear the Inchcape Rock. The ringing of
the bell would have indicated the presence of the perilous rock and thus
saved the ship from colliding with it.
d. What was placed on the Inchcape Rock? Who had done so?
The Abbot of Aberbrothok had placed the bell on a buoy, on the Inchcape
Rock. He had done so to warn the mariners of the perilous Rock when
there was a storm at sea.
Where Love Is God Is
a. What advice did Martin get from an old pilgrim?
The old man told him that he had no right to wish for his death. He should
live for God as God gives life to us and wants us to live for him. The way
will be shown by Christ.
b. What kind of a person was Martin?
Martin Avdeiteh was a cobbler. He had lived so long in a place that he
recognized people by their boots. He was a hard worker, used good
material, did not charge too much and could be relied on.
c. Why Martin’s soul did grow glad?
The soul grew glad, when he realized that the people who he had helped
the day before were all messengers of God. He realized that all the good
deeds that he did the day before were in fact done for the God.
d. How did Martin convince the apple-woman to pardon the boy?
He told her that God’s way is more kind. God would not want the boy to
be whipped. If the boy should be whipped for stealing the apple, then our
sins are far greater.
9. Answer the following questions in about 100-120 words.
a. Describe Professor Summerlee and Lord Roxton.
Even though Professor Summerlee was sixty six years old, he was well
equipped for the expedition. He had never expressed any dissatisfaction
at the occasional hardships the group of explorers had encountered. From
the beginning, he had never concealed the belief that Professor Challenger
was an absolute fraud. He only spoke of these views from England to
Manaos. He was tall, skinny and had a stringy figure. He could be characterized by a few peculiarities such as his careless attitude towards
his attire, absent mindedness in his habits, and an addiction to smoking a
short hair pipe.
Lord Roxton was twenty years younger than Mr. Summerlee. In his ways,
he was extremely prim and proper, dressed with care in white suits and
high brown boots, and shaved at least once a day. His knowledge of the
world, especially South America was amazing. He had tremendous belief
in the possibilities of their journey. He spoke little of his own exploits in
Brazil and Peru but it generated a lot of excitement among the Indians
they encountered. His former experiences enabled him to converse
fluently in Lingua Geral which was one third Portuguese, two thirds Indian
and spoken all over Brazil.
b. Describe the explorers’ journey on the river.
For two days the explorers sailed up the river, hundred yards broad, dark
in colour but transparent so that one could see the bottom. They were
surrounded by mystery. The height of the trees and the thickness of their
trunk was something the narrator had ever seen before. Vivid orchids and
wonderful coloured lichens smoldered upon the tree trunks. There was no
real movement of any animal life except the monkeys, snakes and birds
who lived in the sunshine and looked down at their tiny stumbling figures.
On the third day, Professor Challenger said that he had chosen the Assai
palm as his landmark. The secret opening was about half a mile on the
other side of the river. There was no break in the trees. The thick
vegetation met overhead into natural tunnel and throughout this tunnel
of greenery flowed a marvellous river. They made their way down this
river for three days. However, on the third day they bid their canoes
farewell as the river was growing shallower.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
SCIENCE EXTRA QUESTIONS
EXTRA QUESTIONS
1. Name any two products obtained from petroleum.
2. (a) Which type of plastics can be used to make microwave-safe containers? Give two examples.
(b) Write any two characteristics of polycot.
3.Give reason for the following statements.
(a) A chemical which emits odour is generally added to natural gas before supplying it to homes and factories.
(b) Unlike on earth, the rocks do not get broken down on the moon.
4. (a) Sanjay has arranged two plane mirrors at an angle of 60°. Find the number of images formed.
(b) What is reflex arc?
Subscribe to:
Posts (Atom)