Question

FILL IN THE BLANKS
1. The...................helps in maintaining the temperature on the earth.
2.....................is used by plants for protein synthesis.
3. Organisms like earthworm take in oxygen from the.................trapped in soil.
4. The.................
..uses wind energy to generate electricity.
5. The process of.....................is the main source of oxygen on the earth.
STATE TRUE OR FALSE
1. Inhaled air has more carbon dioxide than oxygen. ....................
2. Oxygen is also produced during burning of food inside the body...................
3. Photosynthesis and respiration both are the same processes. ..........
......
4. Some bacteria present in the soil help in fixing the atmospheric nitrogen. ...................
5. Carbon dioxide turns limewater milky. .........................​

Answer 1

1. atmosphere

2. Nitrogen

3. water

4. wind blade

5. photosynthesis

1.false

2. false

3. false

4. true

5. true

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Answer 2

Answer:

1- Atmosphere

2- Sunlight

3- air bubbles

4- windmill

5- Photosynthesis

T/F

1- false

2- false

3- false

4- true

5- true