Question

Identify each example on the diagram as a carbon source or a carbon sink.

Answer 1

Plants and animals RE a carbon source during respiration. they take in Oxygen and give out Carbon (IV) oxide as a by product.  Combustion of fossil fuels is also source of carbon (IV) Oxide.

Formation of fossils from dead plants and animals is a carbon sink. photosynthesis is also a carbon sink as plants take in carbon (IV) Oxide that is used to make food.

Answer 2

Answer: According to the given diagram.

Atmosphere- source

Factories, power stations and vehicle emissions- source

Fossil fuels (coal, oil, natural gas)- source

Plants- sinks

Animals- source

Explanation:

According to the given diagram.

Atmosphere- source

The atmosphere is the mass of different gases. The carbon dioxide is the gas which is also present in the atmosphere. The atmosphere is the source of carbon dioxide.

Factories, power stations and vehicle emissions- source

The factories, power stations and vehicle emissions emit the carbon dioxide gas into the atmosphere as they use the fossil fuel as a source of thermal energy.

Fossil fuels (coal, oil, natural gas)- source

When the fossil fuel burns they emit immense amounts of gases such as carbon dioxide and carbon monoxides in the atmosphere. Hence, they are the source of carbon.

Plants- sinks

Plants require carbon dioxide as reactant for the purpose of photosynthesis. Therefore, they absorb the carbon dioxide from the atmosphere. Hence, they called as carbon sinks.

Animals- source

The animals release carbon dioxide in the atmosphere which is a byproduct of the process of respiration.