Answer: Different fuel components boil at different temperatures, allowing them to be separated.
Explanation:
Hydroelectric power is generated from moving water is true.
Option A.
<h3><u>Explanation:</u></h3>
Hydroelectric power is the type of renewable source of energy which is obtained from turning a turbine through a running source of water like river or waterfall and producing the electrical energy from it. Running source of water is a must need for a hydroelectric power.
Oil or gasolene is actually petroleum which is mined from under the earth surface which is then burnt to obtain energy. Its used to produce jet fuel, but isn't a renewable source of energy.
Propane is also a byproduct of gasolene which is non renewable source of energy.
Geothermal energy is renewable source of energy, but it doesn't require a solar cell to produce the power.
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Hope this helped!
STSN</span>
Both are mechanical waves (they must have a substance to travel through)
density=6.5g/cm cube
mass=0.40 gm
volume=density*mass
so,
6.5*0.40=2.6 cm cube
final answer: 2.6 cm cube