Practicing Success
Practicing Success
CUET Preparation Today
In the question given below there are 2 statements marked as Assertion (A) and Reason (R). Choose the correct alternative from the following options. Assertion (A)- The CFC's were banned throughout the world after adopting "Montreal Protocol" Reason (R)- Chlorofluorocarbons is supposed to be the major cause of ozone depletion. |
Both (A) and (R) are true and (R) is the correct explanation. Both (A) and (R) are true but (R) is not the correct explanation of (A). (A) Is true but (R) is false. (A) Is false but (R) is true. |
Both (A) and (R) are true and (R) is the correct explanation. |
Ozone depletion refers to the phenomenon of reductions in the amount of ozone in the stratosphere. The major reason for ozone depletion is the increasing levels of chlorine and bromine compounds, which orgin from CFC's ( Chlorofluorocarbons). Since, ozone prevents UV rays from passing through Earth's atmosphere, it lead to complete ban on CFC's and other ozone depleting chemicals after adoption of "Montreal Protocol". |
