Given a scientific question and its correct answer, generate supporting facts for the answer. This supporting fact can be an explanation for the answer to the given question.

[Q]: Question: What mainly gives the body energy? Answer: food
[A]: Food gives the body energy. You need energy for everything you do. The energy in food is measured in a unit called the Calorie.

[Q]: Question: What do ecosystems require constant inputs of? Answer: energy
[A]: Ecosystems require constant inputs of energy from sunlight or chemicals.

[Q]: Question: Some bacteria can contaminate food and cause what illness? Answer: food poisoning
[A]:
Some bacteria can contaminate food and cause food poisoning.