EVERYDAY SCIENCE

Detailed explanation-1: -Plants take in CO2 during photosynthesis and give out oxygen into the atmosphere, while animals take in oxygen and breathe out carbon dioxide during respiration. In this way, plants and animals help each other in the exchange of gases in the atmosphere. Was this answer helpful?

Detailed explanation-2: -This leftover oxygen is really important because humans and other animals need this oxygen to live which we breathe in from the air. When we breathe out, we release carbon dioxide into the air which is then used by the plants to make their food and the cycle starts all over again.

Detailed explanation-3: -Animals breathe, oxygen and give out carbon dioxide.

Detailed explanation-4: -Plants use photosynthesis to capture carbon dioxide and then release half of it into the atmosphere through respiration. Plants also release oxygen into the atmosphere through photosynthesis.

Detailed explanation-5: -Plants breathe in oxygen and give out carbon dioxide. But during the day, the amount of carbon dioxide released is much less than the amount required for photosynthesis. So, plants take in carbon dioxide from the atmosphere for preparing food.