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Oxygen aids in an organism's ability to reproduce, grow, and convert food into energy. Humans breathe air into their lungs through their mouths and noses to receive the oxygen they require.

Explain what gas is.

A gas is a sample of matter that, despite gravity and regardless of the volume of the container in which it is held, conforms to the shape of the container in which it is held and develops a uniform density inside the container.

What's causing the price of gas to rise?

There will be a 2 million barrel per day reduction in oil production, according to major oil-producing nations Saudi Arabia and Russia. The consequences of that choice will therefore soon be felt by Americans when they fill up their gas tanks.

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