GED Science Practice

What is the process of "Photosynthesis"?

1. a) Synthesis of compounds in the bloodstream

2. b) Floating or drifting small organisms in water

3. c) Revolving of celestial bodies around the sun

4. d) Synthesis of compounds with radiant energy

The correct answer is: d) Synthesis of compounds with radiant energy

Photosynthesis is the process by which plants, algae, and some bacteria convert light energy from the sun into chemical energy to fuel their growth and other activities. Option A is incorrect because the synthesis of compounds in the bloodstream is a process related to the human body, not plants. Option B is incorrect because floating organisms in water do not perform photosynthesis. Option C is incorrect because the revolving of celestial bodies around the sun does not involve the synthesis of compounds. The correct answer, D, is the only option that correctly describes the process of photosynthesis.