| I. Ocean acts as the global sink for\[C{{O}_{2}}\]. |
| II. The atmospheric input of carbon from rainfall is greater. |
| III. Carbon gas is exchanged between organisms and atmosphere during respiration. |
| IV. Human activities are increasing\[C{{O}_{2}}\]concentration in the atmosphere. |
A) Only I
B) II and IV
C) Only II
D) None of the above
Correct Answer: D
Solution :
All the statements are correct. Carbon dioxide is almost certainly being absorbed by the oceans, which act as a global sink for\[C{{O}_{2}}\]. It is not clear how much more\[C{{O}_{2}}\]the ocean can hold. Human activities like deforestation, massive burning of fossil fuel for energy and transportation has caused an increase in the amount of\[C{{O}_{2}}\] in atmosphere. The atmospheric carbon dioxide is virtually the only source of carbon. The main pathway of carbon in carbon cycle in from the air (atmosphere) and water (hydrosere) into the living systems and back. The atmospheric input of carbon from rainfall is greater. Carbon gas is exchanged between organisms and atmosphere during respiration.
You need to login to perform this action.
You will be redirected in
3 sec
