Question

2. Animals need
gas for breathing.
3. Plants use
gas to prepare their own food.
4. The process, by which plants prepare their food, is called
5.
gas, present in the atmosphere, protects us from the harm
rays of sunlight.
6. Air, containing impurities, is called​

Answer 1

Answer:

2 oxygen

3 carbon dioxide

4 photosynthesis

5 oxygen

6 air pollutants

Answer 2

Answer:

2 oxygen

3 carbon dioxide

4 photosynthesis

5 ozone

6 dust

Explanation: