Answer: All of the rock in the Earth is recycled and accounted for during the rock cycle. This principle applies to other areas of science as well and is known as conservation of mass, which says that mass cannot be created or destroyed but is cycled between different forms.
Explanation:
Answer:
C if you plug it into the sentance its the only one that makes sense
true.
cell theory:
1. all licing things are composed of cells. ( or cell products)
2. the cell is the smallest unit of life.
3. cells only arise from pre-existing cells.