Question

based on the model and the information in the table, which statement best explains why special lights can be more beneficial for growing plants?
a. they provide better substrates for the plants to use to make sugar during photosynthesis.

b. they provide more energy that the plant uses to absorb the substrates needed to make food.

c. they provide wavelengths of light that input more energy for use during photosynthesis.

d. they provide colors of light that are better for making sure the plants stay warm.

Explanation:

• Option A: Substrates for photosynthesis (like CO₂, water) aren’t provided by light, so A is wrong.
• Option B: Light doesn’t help absorb substrates (e.g., roots absorb water/minerals), so B is wrong.
• Option C: Special lights have wavelengths (e.g., red/blue) that plants absorb well, providing more energy for photosynthesis. This matches photosynthesis principles.
• Option D: Light for plant growth is about energy for photosynthesis, not warmth, so D is wrong.

Answer:

C. They provide wavelengths of light that input more energy for use during photosynthesis.