A substance which allows energy (heat or electricity) to pass through it is known as a conductor.
These substances usually have free electrons which allows the charges to flow easily in the substance, thus, transferring energy.
Other substances which do not have free electrons and do not allow energy to pass through them are known as insulators.
The ancient greeks thought that the earth was composed of earth, water, fire, and air.
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Granite is a rock, so it would be a solid
Answer:
answer is D
Explanation:
( i took this test and got an A+)
Longer wavelength means frequency is lower, thus pitch is lower
