Which of the following statements is/are correct?
I. All green plants can prepare their own food.
II. Most animals are autotrophs.
III. Carbon dioxide is not required for photosynthesis.
IV. Oxygen is liberated during photosynthesis
Choose the correct answer from the options below.

Correct option is A

The correct answer is I and IV.
All green plants can prepare their own food
Green plants are autotrophs, meaning they can make their own food from inorganic chemicals in the environment, like carbon dioxide and water.

Oxygen is liberated during photosynthesis
Oxygen is a by-product of photosynthesis, which is the process by which green plants convert solar energy into chemical energy.
Information Booster
Here's some more information about photosynthesis and autotrophs:
Carbon dioxide is required for photosynthesis
Carbon dioxide and water react in the presence of sunlight to produce oxygen and glucose molecules.

Most animals are heterotrophs
Heterotrophs, also known as consumers, depend on autotrophs for food and energy. They obtain energy by breaking down carbohydrates or oxidizing organic molecules.