Question

what would most likely happen to life on earth if the carbon cycle stopped? only animals would be affected. only plants would be affected. life would cease to exist. life would continue unchanged.

Explanation:

The carbon - cycle is crucial for life on Earth. Plants use carbon dioxide for photosynthesis to produce food and oxygen. Animals consume plants and release carbon dioxide back into the atmosphere through respiration. Without the carbon - cycle, plants couldn't perform photosynthesis, leading to their death. Animals that depend on plants for food would also die. Eventually, all life would cease as the entire food - web collapses.

Answer:

Life would cease to exist.