Science TRUE & FALSE

The balance of oxygen in atmosphere is maintained through photosynthesis in animals and respiration in plants- False.
Correct statement
The balance of oxygen in the atmosphere is maintained through photosynthesis in plants and respiration in animals.

Whales come up to the water surface to breathe in oxygen- True.

The composition of air is always exactly the same- False.
Correct statement
The composition of air changes slightly place to place.

Planting trees help in decreasing global warming- True.

Inhaled air contains a large amount of carbon-di-oxide- False.
Correct statement
Inhaled air contains a large amount of Oxygen.

False – (When cooled to -57°C, gaseous carbon-di-oxide becomes a solid)

true

False – (The air in coastal areas have more water vapour)

true

False – (Nitrogen is used for the synthesis of protein and fertilizers)