I need help with question 4 of this Earth Science lab Carbon Cycle Analysis

I basically need help with understanding how humans affect the carbon dioxide cycle in each atmosphere, so like the hydrosphere, biosphere and so on, so that should be the answer, thank you!

4. Construct a model of the carbon cycle that explains why the carbon dioxide levels are increasing.

this age may represent the age of the earth's accretion, of core formation, or of the material from which the earth formed. this dating is based on evidence from radiometric age-dating of meteorite material and is consistent with the radiometric ages of the oldest-known terrestrial and lunar samples.

there is not 1 highest source of protein, but there are many; meats, fish, poultry, seafood, cheese, eggs, yogurt and milk. the only non complete animal food that is beneficial is gelatin.

sorry if this did not , have a great day!

i think its both a and b