Rock
Explanation:
Naturally occurring solid mixtures of one or more minerals in organic matter is called a rock.
- A rock is an aggregate of minerals.
- There are three classes of rocks; sedimentary, metamorphic and igneous rocks.
- The rock cycle process provides a pathway through which the different types of rocks are changed.
- Igneous rocks are formed from molten rocks that cools and solidifies.
- Sedimentary rocks are formed from the weathered and eroded materials.
- Metamorphic rocks are changed rocks.
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A scientific theory is a theory that explains the scientist's observations, whereas a scientific law is a repeated pattern in the world that we have not sought an explanation for.
Answer:Nuclear fusion
Explanation:
Which event takes place first in the stages before the birth of a star? Gravity pulls gas and dust together. A protostar forms as mass increases. Nuclear fusion begins under high pressure.
Answer:
B
Explanation:
bones are made from many minerals because of calcium;)
