A source of energy so if thats a option then its a source of energy
The answer is option C (Magma contains the same elements as Earth's crust)
Magma is basically a part of the earth crust; it originates in the lower part of the Earth’s crust and contains the same elements as the earth’s crust, namely Oxygen, Silicon, Aluminium, Iron, Calcium, Sodium, Potassium and Magnesium.
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A. the volcanic eruptions of Mt. Vesuvius
Pros - Gets a lot of sunlight
Cons - Might get dehydrated
