Question

Animal use oxygen from air for _________ .And plants use carbon dioxide from air in the preparation of food through the process called as ___________​

Answer 1

Answer:

Animal use oxygen from air for breathing .And plants use carbon dioxide from air in the preparation of food through the process called as photosynthesis.

Answer 2

Required Answer:-

Animal use oxygen from air for respiration. And plants use carbon dioxide from air in the preparation of food through the process called as photosynthesis.

Explanation:-

Animals are heterotrophs and are directly or indirectly dependent on plants for their food. Animals can respire though external and cellular gaseous exchange. Respiration helps in oxidising our food.

Plants have a special pigment called chlorophyll which can trap solar energy and later it is converted into chemical energy by the process of photosynthesis. Plants can also respire. It takes in CO2 and gives out O2 during photosynthesis but vice-versa in Respiration process$.$