Animals give off a number of gasses during Day and night, most notably Carbon dioxide and methane gas. Oxygen is needed by man and animal.
Methane. Carbon dioxide.
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Animals use and produce the same gases day or night. Oxygen utilized and CO2 produced.
All plants, animals, fish etc, need gas from the air to breathe. Whether it be carbon dioxide, oxygen from water or our atmosphere, its pretty much a given.
Carbon Dioxide
Oxygen
Methane is given off by animals as a waste gas.
In the atmosphere, carbon is attached to the oxygen gas molecules and with the help of the sun and photosynthesis; the C02 gas is pulled from the air to make plant food from carbon molecules. Through food chains, the carbon in the plants moves into the animals that consume the plants, and animals eat other animals are getting the carbon from their food. In basic terms: carbon moves from plants to animals, and into the ground and reenter the atmosphere. The 02 gas is produced in the plants which release it into the air and consumers inhale it in; and/or the 02 gas in the atmosphere goes into the ground.
In the atmosphere, carbon is attached to the oxygen gas molecules and with the help of the sun and photosynthesis; the C02 gas is pulled from the air to make plant food from carbon molecules. Through food chains, the carbon in the plants moves into the animals that consume the plants, and animals eat other animals are getting the carbon from their food. In basic terms: carbon moves from plants to animals, and into the ground and reenter the atmosphere. The 02 gas is produced in the plants which release it into the air and consumers inhale it in; and/or the 02 gas in the atmosphere goes into the ground.
In the atmosphere, carbon is attached to the oxygen gas molecules and with the help of the sun and photosynthesis; the C02 gas is pulled from the air to make plant food from carbon molecules. Through food chains, the carbon in the plants moves into the animals that consume the plants, and animals eat other animals are getting the carbon from their food. In basic terms: carbon moves from plants to animals, and into the ground and reenter the atmosphere. The 02 gas is produced in the plants which release it into the air and consumers inhale it in; and/or the 02 gas in the atmosphere goes into the ground.
oxygen
There are two gases: hydrogen and oxygen.
They are called gas giants, actually. They are called that, because they have a very thick atmosphere and the core is so deep below the 'surface' of the atmosphere that we cannot see the core.