Which of the following statements is TRUE? (Select the best one that applies) Select one: a. People should wear sunscreen due to the UV light waves and the radio waves emitted by the sun. b. Chlorophyll a and cartenoids is the main pigment in photosynthesis. c. Only heterotrophs have the ability to make glucose. d. Scientists can determine the amount of energy of a wave by measuring its wavelength and radius. e. The sun emits enormous amounts of electromagnetic radiation.

• The sun emits enormous amounts of electromagnetic radiation.

Explanation:

The sun produces a lot of electromagnetic radiation which we call solar energy, and which we can only see a fraction of, referred to as the visible light. Solar energy travels in waves. Solar radiation also includes Ultraviolet light, infrared waves, X-rays, and gamma rays. Chlorophyll-a is the main pigment for photosynthesis in autotrophs.

1. People should wear sunscreen due to the UV light waves and the radio waves emitted by the sun - .False - It is due to UV light from the sun
2. Chlorophyll a and cartenoids is the main pigment in photosynthesis. - False - Chlorophyll a and chlorophyll b are the two main pigments for phytosynthesis.
3. Only heterotrophs have the ability to make glucose. - False - Heterotrophs do not make glucose, it is autotrophs that make glucose
4. Scientists can determine the amount of energy of a wave by measuring its wavelength and radius. - False - Amount of energy of a wave is measured by its wavelength only and not radius.
5. The sun emits enormous amounts of electromagnetic radiation. - True