The sun contributes what to ecosystems?\nOptions:\n- (A) sun spot\n- (B) energy\n- (C) darkness\n- (D) seeds\n- (E) positive\n- (F) photons\n- (G) Nutrients\n- (H) Energy.
Hmmm, let me think. I don't want to be wrong, so I got to be careful.
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Energy enters ecosystems in the form of sunlight or chemical compounds. If there is sun, there is sunlight, there is day. Energy enters ecosystems from the sun. The answer: (B).
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