Question

Class-7
Environment

Q1. Write whether the given statements are true or false:

1. Landforms are found only over continents.
2. Trade in which goods are exchanged without the use of money is called barter system.
3. Gravitational force of the earth holds the atmosphere around it.
4. No life can exist in biosphere.
5. Abiotic environment consists of living organism.
6. World Environment Day is celebrated on 5th June.
7. In barter system people use method of exchange.
8. Hydrosphere is the domain of water.
9. Biotic consists of dead organisms.
10. Aquarium is not a natural ecosystem.
11. Land is a component of human environment.
12.  Road is a human made environment.


Q- Fill in the Blanks
1. Hydrosphere is a part of _________
2. Two main constituents of environment are ____________ and __________
3. _____________ is the hard top layer of the earth.
4. ____________ modify the natural environment.
5. Biotic components conclusively made an __________
6. The top most layer of the earth _________
7. The atmosphere is held by the force of __________
8. The ___________ is the layer of the earth which is surrounded by the earth.​

Answer 1

Answer:

1.false

2.

3.true

4.false

5.false

6.true

7.

8.true

9.false

10.false

11.false

12.true

1.

Answer 2

Explanation:

1. Landforms are found only over continents. false

2. Trade in which goods are exchanged without the use of money is called barter system. true

3. Gravitational force of the earth holds the atmosphere around it. true

4. No life can exist in biosphere. false

5. Abiotic environment consists of living organism. false

6. World Environment Day is celebrated on 5th June. true

7. In barter system people use method of exchange. true

8. Hydrosphere is the domain of water. true

9. Biotic consists of dead organisms. false

10. Aquarium is not a natural ecosystem. true

11. Land is a component of human environment. true

12.  Road is a human made environment. true

Q- Fill in the Blanks

1. Hydrosphere is a part of biosphere

2. Two main constituents of environment are biotic and abiotic.

3. crest is the hard top layer of the earth.

4. humans modify the natural environment.

5. Biotic components conclusively made an living environment

6. The top most layer of the earth crest

7. The atmosphere is held by the force of Earth's gravitation

8. The atmosphere is the layer of the earth which is surrounded by the earth.

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