Kuiper belt objects are composed of which substances? select all that apply.
a. iron
b. silicon
c. water
d. methane
e. ammonia

IM sure there is C, D, and E in kuiper belts, but not really sure of silicon and iron

Answer8.0m;

The answer is water molecules are split.cellular respiration and photosynthesis are complement  reactions to each other. these are reverse reactions. in cellular respiration glucose and oxygen yield water and carbon dioxide. so, when respiration begins,  glucose molecules are split. in the opposite reaction - in photosynthesis, carbon dioxide and water yield glucose and oxygen. thus,  when respiration begins, water molecules are split.