 
 <translate> Energy enters ecosystems in the form of sunlight or chemical compounds. Sunlight is the source of light in nature. Nature is comprised of many ecosystems which all depend upon energy.
The final answer: (C). <ibo> Ike na-abanye n'ihe ndị e kere eke n'ụdị ìhè anyanwụ ma ọ bụ ihe ndị e ji emepụta kemikal. Ìhè anyanwụ bụ isi iyi nke ìhè dị n'okike. E nwere ọtụtụ ihe ndị dị ndụ n'ụwa, ha niile na-adabere n'ike. Azịza ya bụ: (C). 