<em>Answer:</em>
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<em>Rock is a type of Earth material. Most rock is made up of </em><em><u>minerals.</u></em>
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<em>Hope this helps you</em>
Answer:
the answer will be
measure the growth of plant that did not recieve fertilizer
perform additional trials
Explanation:
i just took the test and got the answer right
Air pollution. Cleaner burning than other fossil fuels, the combustion of natural gas<span> produces negligible amounts of sulfur, mercury, and particulates. Burning</span>natural gas does<span> produce nitrogen oxides (NOx), which are precursors to smog, but at lower levels than gasoline and diesel used for motor vehicles.</span>
