What do phytoplankton and algae need in order to make energy?\nOptions:\n- (A) water\n- (B) glucose\n- (C) food\n- (D) sunlight\n- (E) bacteria\n- (F) Light\n- (G) adding heat\n- (H) The Sun Let's solve this problem gradually.

User
Phytoplankton are bacteria and algae that use sunlight to make food. Food gives energy. Phytoplankton and bacteria are algae that use sunlight to make energy. So the final answer is (D).
Assistant