Oil Coal and Natural Gas are the fossil fuels the USA has the most reserves of. Given that only one of them is on the answers Coal is the correct answer.
Answer:
your answer it figure B the younger material is always closer to the surface
A tornado is formed by two rocks hitting together under the ground which makes the ground shake.
A) Taiga
This is shown by the cold winters and the animal life in the example.
M phase, or mitosis.
(You don't need to know this for your course but more properly cell division could also refer to meiosis or binary fission.)