Question

Which phenomena release CO2 into the atmosphere?

Answer 1

Decomposition of Organic Matter.

Step-by-step explanation:

The matter decomposes into C02.

Answer 2

There are actually several phenomena that release
`CO_2` into the atmosphere. Some of them are natural phenomena, such as human respiration and the release of
`CO_2` from the oceans. Other phenomena are instead related to human activities, such as deforestation and industrial activities (for instance, burning of fossil fuels).