Answer:
Igneous rocks are formed from melted rock deep inside the Earth. Sedimentary rocks are formed from layers of sand, silt, dead plants, and animal skeletons. Metamorphic rocks formed from other rocks that are changed by heat and pressure underground.
Explanation:
It was not accepted because at the time it was believed that the earth was at the center of the universe.
Answer:
I think the answer for your question is the letter c
They can keep organ tissue alive for transplantation.