1. Inhaled air contains a large amount of carbon-dioxide. 2. Planting trees help in decreasing global warming.

Question

True or False. If False, give the correct statement:

1. Inhaled air contains a large amount of carbon-dioxide.

2. Planting trees help in decreasing global warming.

3. The composition of air is always exactly the same.

4. Whales come up to the water surface to breathe in oxygen.

5. The balance of oxygen in atmosphere is maintained through photosynthesis in animals and respiration in plants.

Answer 1

1. False, Inhaled air contains a large amount of Oxygen.

2. True

3. False, The composition of air changes slightly place to place.

4. True

5. False. The balance of oxygen in atmosphere is maintained through photosynthesis in plants and respiration in animals.