Question

Human activity affecting the carbon cycle is
A)Burning of fossil fuels
B)Burning and ploughing of tropical rainforest
C)Growing paddy
D)Both A and B

Answer 1

Hint: The carbon cycle is a natural way of reusing the carbon atoms. It is the cycle that travels from atmosphere to organisms and vice versa and this cycle repeats over and over again. Rocks and Sediments are the sites for storing carbons whereas the rest are stored in the ocean, atmosphere, and living organisms.

Complete answer:
Human activities like the burning of fossil fuels, burning of forests for land use, etc all cause a tremendous impact on the carbon cycle. because of these activities, the amount of carbon dioxide in the atmosphere is rising rapidly. The carbon dioxide is being absorbed by the ocean which is released from the burning of fossil fuels which in turn lowers the pH of the ocean through a process called ocean acidification.
-As a result, this interferes with the ability of marine organisms to build their shells and skeletons.

Additional Information: -Complex molecules like proteins and DNA required carbon for their formation. And this carbon is found in our atmosphere in the form of carbon dioxide.
-It helps in the regulation of the temperature of Earth which makes all life possible. It is also the key ingredient in the food that sustains us.
-Carbon provides a major source of energy to fuel our global economy.
-The carbon cycle is the process through which carbon atoms travel from the atmosphere to the Earth then back into the atmosphere. Our planet and atmosphere form a close environment because of this the amount of carbon does not change in this system.

So, the correct answer is,” both A and B”

Note: -Mainly, most of the carbon is found in rocks and sediments by rest is located in the ocean, atmosphere, and living organism. Hence, these are the reservoirs through which the carbon cycle takes place.
-Through activities like burning fossil fuels or land development, the amount of carbon dioxide in the atmosphere is rising rapidly. Hence, humans play a major role in the carbon cycle.