Yes, they are.
Minerals are the result of rock metamorphic cycles and other volcanic activities that result to these mixture of different minerals. Minerals can also be the cause of some biogeochemical cycles that occurs on the earth's different spheres.
Answer:
1649 years
Explanation:
It took 1649 years for the world population to double, going from . 25 billion people to . 50 billion people
Answer:
cell walls and chlorophyll
Explanation:
they are the key difference between the two types of cells .plant cells have chlorophyll and cell walls while animal cells only have a cell membrane
