You are given a sentence and your task is to generate another sentence that supports the given input.

Q: All the elemental oxygen now in the earth's atmosphere was put there by photosynthetic plants and bacteria.

A: On a global scale, plants and other photosynthetic organisms have generated all of the oxygen in the air.
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Q: Accordingly, an increase in pressure will cause an increase in density of the gas and a decrease in its volume .

A: If a gas in a closed area experiences increases in pressure and decreases in temperatures, the volume of the gas will be affected.
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Q: The elimination is driven by competition between neurons, which in turn is governed by the activity or use of neural circuits.

A:
Half of the neurons formed in the embryo are eliminated because of competition
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