Question

Fill in the blanks with appropriate words:
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.

Answer 1

1) Hydrosphere is a part of biosphere.

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

3) Crust is the hard top layer of the earth.

4) Man-made machineries modify the natural environment.

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Answer 2

Answer:

biosphere

Explanation: