Answer:
The earths interior is super hot and compressed, it is made of iron and nickle
The rocks down there are really fine and compressed while rocks on the surface are sedimentary, have air pockets, and are not as fine as rocks in the core.
Explanation:
One benefit of animals living in a group are that they can stand up to other animals more easily. One cost is that they have to share food and resources.
The place where large number of energy is required for cells like in liver , in heart , in legs etc
C. pear is not a fossil fuel because it has biologic origins making it a biofuel