I had the same question on a test, the answer is A. Both solar and hydroelectric energy do not emit air pollutants, and although geothermal energy releases some gases, biomass is the biggest polluter.<span>
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Answer: Metal. There are six of them. inclined plane, the wedge, the screw, the lever, the wheel and axle, and the pulley.
Hope this helps!
~Jarvis
Explanation:
I would expect it to be slightly basic.
It's inertia. A rule that you see every day, for example a brick will stay in the same spot unless a force acts on it.
I think its " both have level surfaces"