Are there answer choices or is this a write in answer?
If your question is of the core of the Earth, it is suspected to be made of iron and nickel.
Answer:
If garlic repels fleas, then a dog that is given garlic every day will not get fleas. Bacterial growth may be affected by moisture levels in the air. If sugar causes cavities, then people who eat a lot of candy may be more prone to cavities.
Explanation:
Fossil fuels about into Earth ice age time
