Question

the sun is the source of ________.
a. all energy for your body
b. ultraviolet radiation that can cause cancer
c. oxygen, which supports our breathing
d. none of the above

please select the best answer from the choices provided.

○ a
○ b
○ c
○ d

Explanation:

• Option A: The energy for the body comes from food (chemical energy), and the Sun's energy is converted to chemical energy in plants via photosynthesis, but not all body energy is directly from the Sun.
• Option B: The Sun emits ultraviolet (UV) radiation, and excessive UV exposure can cause skin cancer. This is correct.
• Option C: Oxygen is produced by plants during photosynthesis (using Sun's energy), but the Sun itself does not directly produce oxygen for breathing.

Answer:

B. ultraviolet radiation that can cause cancer