3 years ago

Which organisms produce about half of the oxygen on earth answers?

Biology

2 answers:

Rufina [12.5K]3 years ago

8 0

Answer:

Phytoplankton in the oceans.

Explanation:

The unicellular organisms with green pigment add to the oxygen quantity in the earth's atmosphere through photosynthesis.

Ksenya-84 [330]3 years ago

3 0

The answer is Plankton

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You measure the pH of your backyard soil and find it is 7. You measure the pH of your friend's backyard soil and find it is 4. H

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Answer:

1000 times.

Explanation:

Hello,

In this case, since the pH is defined by:

$pH=-log([H^+])$

If we want to compute the concentration of hydrogen we must write:

$[H^+]=10^{-pH}$

Thus, for both the backyard soils we compute:

$[H^+]_{pH=7}=10^{-7}=1x10^{-7}M$

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It means that:

$\frac{[H^+]_{pH=4}}{[H^+]_{pH=7}} =\frac{1x10^{-4}M}{1x10^{-7}M}\\ \\\frac{[H^+]_{pH=4}}{[H^+]_{pH=7}}=1000$

It means that the concentration of hydrogen at a pH of 4 is 1000 times greater than the concentration of hydrogen at a pH of 7.

Regards.

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3 years ago

What phenomena shape and drive global wind patterns?

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