Question

Which of the following is necessary for photosynthesis?

• A. Light
• B. Sound
• C. High temperature
• D. High pressure

Answer 1

The correct option is A Light

• Most plants are autotrophs (ability to make their own food) that utilize the light from the sun, $C{O}_2$ from atmosphere, water, and minerals from the soil to make their food.
• The leaves of the plants contain a pigment called chlorophyll (green color pigment) which requires light for the synthesis/production of the food.

Thus, the correct option is A.