Carbon dioxide is obtained from the air and changed into carbohydrates and oxygen during

the process of

A) fossilization.

B) respiration.

C) digestion.

D) photosynthesis

The correct answer is D) photosynthesis.

Photosynthesis is the process by which green plants, algae, and some bacteria convert carbon dioxide from the air, along with water, into carbohydrates (such as glucose) and oxygen. This process mainly occurs in the chloroplasts, specialized organelles found in the plant cells.

During photosynthesis, plants capture sunlight energy using a pigment called chlorophyll. This energy is then used to split water molecules, releasing oxygen as a byproduct. Carbon dioxide from the air enters the leaves through tiny pores called stomata. Inside the chloroplasts, carbon dioxide combines with the hydrogen from water to form glucose and other carbohydrates. These carbohydrates serve as the energy source for plants and are stored as starch or used for growth and development.

In summary, plants obtain carbon dioxide from the air and convert it into carbohydrates and oxygen through the process of photosynthesis.