MCQ on Natures Treasures Class 6
Class 6 Science Chapter 11 MCQ Natures Treasures
Multiple Choice Questions:
Choose the correct option
Question 1.
Air contains __________ oxygen.
(a) 100%
(b) 50%
(c) 25%
(d) 21%
Answer:
(d) 21%
Question 2.
What is the role of forests?
(a) Provide food, shelter, water and medicines
(b) Prevent soil erosion
(c) Prevent floods
(d) All of these
Answer:
(d) All of these
Question 3.
Which of the following is not a fossil fuel?
(a) Coal
(b) Wood
(c) Petrol
(d) Natural gas
Answer:
(b) Wood
Question 4.
Van Mahotsav is celebrated in
(a) April
(b) July
(c) August
(d) MArch
Answer:
(b) July
Question 5.
Which of the following is an example of renewable natural resources?
(a) Air
(b) Water
(c) Forests
(d) All of these
Answer:
(d) All of these
Question 6.
Which one of the following is not a fossil fuel?
(a) Petrol
(b) Coal
(c) Coke
(d) Charcoal
Answer:
(d) Charcoal
Question 7.
The important message conveyed by the Chipko movement is
(a) To involve the community in forest conservation efforts
(b) To ignore the community in forest conservation efforts
(c) To cut down forest trees for development activities.
(d) To in government agencies have the unquestionable right to order destruction of trees in forest
Answer:
(a) To involve the community in forest conservation efforts
Question 8.
Which of the following present in soil has a smallest sized Rock particles?
(a) Sand
(b) Clay
(c) Silt
(d) Gravel
Answer:
(b) Clay
Question 9.
Which one of following is an inexhaustible natural resource?
(a) Petroleum
(b) Water
(c) Forests
(d) Coal
Answer:
(b) Water
Question 10.
Which one of the following has no fossil fuels?
(a) Wind,ocean and coal
(b) Kerosene, wind and tide
(c) Wind, wood and sun
(d) Petroleum, wood, sun
Answer:
(c) Wind, wood and sun
Question 11.
Which of following is not a natural resource?
(a) Wind
(b) mango tree
(c) snake
(d) wooden tree
Answer:
(d) wooden tree
Question 12.
The most appropriate definition of a natural resources that it is a substance / commodity that is-
(a) A man made substance placed in nature
(b) Present only on land
(c) Present only in the forest
(d) A gift of nature which is very useful to mankind
Answer:
(d) A gift of nature which is very useful to mankind
Question 13.
Which one of the following is renewable resource?
(a) Wild life
(b) Natural Gas
(c) coal
(d) Petroleum
Answer:
(a) Wild life
Question 14.
Which one of the following is nonrenewable?
(a) Tidal energy
(b) Air
(c) Coal
(d) Rain
Answer:
(c) Coal
Question 15.
Which factor is mainly responsible for increase in demand of natural resources?
(a) Scientific advancement
(b) Increased human population
(c) Use of biodegradable chemicals
(d) Environmental pollution
Answer:
(b) Increased human population
Question 16.
The most rapidly dwindling natural resource in the world is:
(a)Water
(b) Forests
(c) Sunlight
(d) Wind
Answer:
(b) Forests
Assertion-Reason type Questions:
Direction. (Q. No. 1 to 5): The question below consists of an Assertion (A) and a Reason (R).
Use the following key to choose the appropriate answer.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but is false.
(d)) A is false but R is true.
Question 1.
Assertion (A) : The air which surrounds the Earth is a mixture of gases.
Reason : Air contains nitrogen, oxygen, argon, carbon dioxide and other gases in small quantities.
Answer:
(a) Both A and R are true and R is the correct explanation of A.
Question 2.
Assertion : Windmills can be used to run flour mills, to pull up water from a well, and to generate electricity.
Reason : A windmill farm is an area that has a large number of windmills.
Answer:
(b) Both A and R are true but R is not the correct explanation of A.
Question 3.
Assertion : Freshwater is not fit for domestic, agricultural and industrial use.
Reason : Freshwater present in ice sheets and snow, or underground water is difficult to access.
Answer:
(d)) A is false but R is true.
Question 4.
Assertion : There are many things in the soil such as sand, insects and worms.
Reason : Earthworms are natural agents that help in turning and loosening the soil.
Answer:
(b) Both A and R are true but R is not the correct explanation of A.
Question 5.
Assertion: Air, water and forest are some of the examples of renewable natural resources.
Reason: Air, water and forest get renewed, replenished or restored within a reasonable period of time.
Answer:
(a) Both A and R are true and R is the correct explanation of A.
Given below are two statements, one labelled as Assertion (A) and the other labelled as Reason (R).
(a) Both (A) and (R) are true and (R) is the correct explanation of (A).
(b) Both (A) and (R) are true and (R) is not the correct explanation of (A).
(c) (A) is true but (R) is false.
(d) (A) is false but (R) is true.
Question 1.
Assertion (A) : Coal, petroleum and natural gas are called non-renewable sources of energy.
Reason (R): Coal, petroleum and natural gas will get used up, no more supply of these fusels will be available.
Answer:
(a) Both (A) and (R) are true and (R) is the correct explanation of (A).
Question 2.
Assertion (A) : Forest are natural home for many wild animals.
Reason (R) : The roots of a plants hold on to the soil and prevented from being washed way.
Answer:
(b) Both (A) and (R) are true and (R) is not the correct explanation of (A).
Question 3.
Assertion (A) : We need alternative sources of energy.
Reason (R) : Our resources are not unlimited.
Answer:
(a) Both (A) and (R) are true and (R) is the correct explanation of (A).
Question 4.
Assertion (A) : The soil samples collected from different places may be of different colours.
Reason (R) : The soil samples collected from different places contain different materials.
Answer:
(a) Both (A) and (R) are true and (R) is the correct explanation of (A).
Question 5.
Assertion (A) : Resources that get renewed or replenished by natural processes within a reasonable period are called renewable resources.
Reason (R) : Air is a non-renewable resource.
Answer:
(c) (A) is true but (R) is false.
Fill in the Blanks:
Complete the following with a suitable word/words:
1. __________ is the main component of the air.
Answer:
Nitrogen
2. Rainwater harvesting is a method of __________ of water.
Answer:
conservation
3. __________ helps plants prepare food.
Answer:
Sunlight
4. _________ can be used as a building material, like bricks.
Answer:
Laterite
5. Rocks are made up of ________.
Answer:
minerals
6. Petroleum along with natural gas and coal are commonly called __________ .
Answer:
fossil fuels
7. Resources provided by ____________ are called natural resources.
Answer:
nature
8. Minerals, soil, rocks, coal, petroleum and natural gas are examples of _________ .
Answer:
non-renewable natural resources
9. Petroleum along with naturai and coal are commonly called _________.
Answer:
Fossil fuels
10. Resources provided by nature are called _________ resources.
Answer:
natural
11. Resources created by human beings to meet their needs are called _________ resources.
Answer:
human made
12. Resources which get renewed or replenished within a reasonable period of time are called _________ resources.
Answer:
renewable
13. Resources which do not get renewed or replenished within a reasonable period of time are called _________ resources.
Answer:
non-renewable
14. Moving star is called _________ .
Answer:
wind
15. Stepwells are commonly known as ________ in Rajasthan.
Answer:
Bawadi
16. The solar panels capture the sun’s energy and produce _________ .
Answer:
Electricity
17. ______ are large areas with dense growth of various types of plants.
Answer:
Forests
18. _____ is a source of supply or support held in reserve.
Answer:
Resource
True/False
Write ‘true’ or ‘false’ against the following statements:
1. The air which surrounds the Earth is a mixture of only two gases.
Answer:
False
2. The working of a windmill is similar to that of a firki.
Answer:
True
3. The air which we breathe in has oxygen.
Answer:
True
4. Water is a renewable natural resource.
Answer:
True
5. Freshwater is not fit for domestic, agricultural and industrial use.
Answer:
False
6. Stepwells are commonly known as Bawadi in Gujarat.
Answer:
False
7. The Sun is the main source of energy on Earth.
Answer:
True
8. Natural gas and coal are commonly called petroleum.
Answer:
False
9. Recycling of water helps in saving water.
Answer:
True
10. We should use natural resources judiciously.
Answer:
True
11. The renewable resources may get exhausted if not managed properly.
Answer:
True
12. Soil is an example of non renewable resources.
Answer:
True
13. Natural gas is a renewable resource.
Answer:
False
14. Excessive plantation of trees to increase forest cover is deforestation.
Answer:
False
15. Migratory birds is a multinational resource.
Answer:
True
16. Soil is not a natural resource.
Answer:
False
17. A successful forest conservation strategy should involve comprehensive program to protect all the physical biological components.
Answer:
True
18. Recycling water and water harvesting help in saving water.
Answer:
True
19. We use heat and light from the sun for various purposes.
Answer:
True
20. Van Mahotsav is celebrated across the counfriy during the month of July.
Answer:
True
Match the following:
Match the items in column A with those in column B.
| Column A | Column B |
| (i) Soil | (a) Not fit for human consumption |
| (ii) Salty water | (b) Formed by disintegration of rocks |
| (iii) Air | (c) Provide food and shelter to animals |
| (iv) Forests | (d) Takes millions of years to form |
| (e) Needed to breathe |
Answer:
| Column A | Column B |
| (i) Soil | (a) Not fit for human consumption |
| (ii) Salty water | (b) Formed by disintegration of rocks |
| (iii) Air | (c) Provide food and shelter to animals |
| (iv) Forests | (d) Takes millions of years to form |
| (e) Needed to breathe |
Quiz Time:
Question 1.
Which gas is the main component of air?
Answer:
Nitrogen
Question 2.
Which component of air is essential for survival of living beings?
Answer:
Oxygen
Question 3.
Name a wind farm present in Tamil Nadu.
Answer:
Muppandal Wind Farm
Question 4
Name a source of saline water.
Answer:
Ocean
Question 5.
What part of the Earth is covered with water?
Answer:
About two-thirds
Question 6.
Name an object which pollutes our rivers.
Answer:
Plastic bags
Question 7.
Name a technique used for conserving water.
Answer:
Rainwater harvesting
Question 8.
When do we celebrate World Water Day?
Answer:
22nd March every year
Question 9.
Which is the main source of energy on Earth?
Answer:
Sun
Question 10.
Where do we find a large variety of plants or animals?
Answer:
¡n forests
Question 11.
Where was chipko movement started?
Answer:
Uttarakhand
Question 12.
What are rocks made up of?
Answer:
Minerals
Question 13
How many years does it take to form rocks?
Answer:
Thousands to millions of years
Question 14.
Name a less polluting fuel.
Answer:
Natural gas
Question 15.
Give an example of human-made resource.
Answer:
Bicycle
Self-Assessment:
Question 1.
Air contains _________ oxygen.
(a) 100%
(b) 50%
(c) 25%
(d) 21%
Question 2.
What is the role of forests?
(a) Provide food, shelter, water and medicines
(b) Prevent soil erosion
(c) Prevent floods
(d) All of these
Question 3.
Which of the following is not a fossil fuel?
(a) Coal
(b) Wood
(c) Petrol
(d) Natural gas
Question 4.
Assertion : Windmills can be used to run flour mills, to pull up water from a well, and to generate
electricity.
Reason : A windmill farm is an area that has a large number of windmills.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Question 5.
Match the items in column A with those in column B.
| Column A | Column B |
| (i) Soil | (a) Not fit for human consumption |
| (ii) Salty water | (b) Formed by disintegration of rocks |
| (iii) Air | (c) Provide food and shelter to animals |
| (iv) Forests | (d) Takes millions of years to form |
| (e) Needed to breathe |
(A) (i) – (d), (ii) – (e), (iii) – (a), (iv – (b), (v) – (c)
(B) (i) – (b), (ii) – (a), (iii) – (d), (iv) – (e), (v) – (c))
(C) (i) – (b), (ii) – (a), (iii) – (e), (iii) – (c), (iv) – (d)
(D) (i) – (d), (ii) – (a), (iii) – (b), (iv) – (c), (v) – (e)
Question 6.
Classify the following as renewable or non-renewable resources—soil, coal, water and forests.
Question 7.
Name any two activities that are possible due to the presence of air.
Question 8.
Name any two things that you may find in soil.
Question 9.
In which month Van Ma hotsa u is celebrated?
Question 10.
What part of the Earth is covered with water?
Question 11.
What is the composition of air?
Question 12.
Suggest any two ways by which we can conserve water.
Question 13.
Why is natural gas called a very important fossil fuel in these days?
Question 14.
What are clean fuels? Name any two.
Question 15.
Give any two uses of minerals.
Question 16.
How do forests help in preventing soil erosion?
Question 17.
What is rainwater harvesting? Give its advantage.
Question 18.
Give any three examples of rocks and their uses.
Question 19.
Name a few activities for which we need Sun’s heat.
Question 20.
Write a short note on chipko movement.
Question 21.
Sun is called the main source of energy on Earth. Justify this statement.
Question 22.
Why are coal and petroleum known as fossil fuels? What are the disadvantages of using fossil fueís?
How are fossil fuels different from fuelwood?
Question 23.
Differentiate between renewable and non-renewable natural resources.