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Ksju [112]
2 years ago
14

Why do we have rain........................

Chemistry
1 answer:
VladimirAG [237]2 years ago
6 0

Answer:

to watered our source of food

the "PLANTS & TREES"

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The answer for the first question is A. Proton is the subatomic particles which adds most of the mass of an atom as well as the neutron since they have the same mass. Photon, on the other hand, is not one of the subatomic particles.
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3 years ago
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Percent error is the difference between the measured and known value, divided by the known value, multiplied by 100%.

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3 years ago
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