Answer:
A rock is a naturally occurring solid mixture of one or more minerals or organic matter.
Explanation:
A mineral is naturally formed, inorganic, solid, with a fixed chemical composition, and crystalline structure. A rock at the surface of the Earth would need to be weathered down into sediments.
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Steam because steam comes from water which the energy makes it into steam
A controlled variable is the one that is kept constant, the manipulated variable is the independent variable in an experiment , it is called manipulated because is the one that can be changed. A responding variable or variables are the dependent variables that change as a result of the changes in the manipulated variable.
Answer:
One that “Can be answered by conducting an experiment”
Explanation: