Question

What are the sources that contribute carbon
-dioxide to the air​

Answer 1

Answer:

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Explanation:

(1) Diesel engines for transportation and industrial use.

(2) Residential solid fuels such as wood and coal.

(3) Open forest and savanna burning, both natural. initiated by people for land clearing.

(4) Industrial processes, usually from small boilers.

Answer 2

Explanation:

There are both natural and human sources of carbon dioxide emissions. Natural sources include decomposition, ocean release and respiration. Human sources come from activities like cement production, deforestation as well as the burning of fossil fuels like coal, oil and natural gas.