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34kurt
4 years ago
9

Which best explains how photosynthesis is helpful to humans? It reduces the amount of harmful rays released by the sun. It incre

ases the levels of carbon dioxide in the air. It provides oxygen for humans to breathe. It produces proteins, which humans can eat.
Chemistry
2 answers:
masya89 [10]4 years ago
8 0

Answer:I believe that the answer is c

Explanation: photosynthesis gives us oxygen to breath therefore it is helpful to humans

inysia [295]4 years ago
8 0

Answer:

c

Explanation:

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The answer to your question is below

Explanation:

Material             Classification               Reason

Crude oil             Mixture                         Because we know that crude oil

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Dodecane           Compound                  Because it is composed of carbon

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Octane                Compound                  Because it is composed of carbon and

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Benzene              Compound                  It is also composed of carbon and

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Kerosene             Mixture                        It is a combination of hydrocarbons

Oxygen                Element                       We can find it in the periodic table.

Carbon dioxide   Compound                   It is composed of carbon and oxygen.

Water                   Compound                   It is composed of hydrogen and        

                                                                  oxygen.

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