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Statement-1: Ozone protects earth from h...

Statement-1: Ozone protects earth from harmful UV radiation
and
Statement-2: CFC's are main source for ozone layer depletion.

A

Statement-1: is True, Statement-2 is True, Statement-2 is a correct explanantion for Statement-1

B

Statement-1 is True, Statement-2 is True, Statement-2 is NOT a correct explanation for Statement-1

C

Statement:1 is True, Statement -2 is False

D

Statement-1 is False, Statement-2 is True

Text Solution

AI Generated Solution

The correct Answer is:
To analyze the given statements and determine their validity, we can follow these steps: ### Step 1: Evaluate Statement 1 **Statement 1:** Ozone protects Earth from harmful UV radiation. - **Explanation:** The ozone layer, located in the Earth's stratosphere, absorbs the majority of the sun's harmful ultraviolet (UV) radiation. This protective layer acts as a shield, preventing these hazardous rays from reaching the Earth's surface, which can cause skin cancer, cataracts, and other health issues, as well as harm to ecosystems. **Conclusion:** Statement 1 is **True**. ### Step 2: Evaluate Statement 2 **Statement 2:** CFCs are the main source for ozone layer depletion. - **Explanation:** Chlorofluorocarbons (CFCs) are man-made compounds that were commonly used in refrigeration, air conditioning, and aerosol propellants. When released into the atmosphere, CFCs eventually reach the stratosphere, where they are broken down by UV radiation, releasing chlorine atoms that can destroy ozone molecules. This process significantly contributes to the depletion of the ozone layer. **Conclusion:** Statement 2 is **True**. ### Step 3: Analyze the Relationship Between the Statements - While both statements are true, they address different aspects of the ozone layer. Statement 1 discusses the protective role of ozone against UV radiation, while Statement 2 identifies CFCs as a cause of ozone depletion. However, Statement 2 does not explain how CFCs lead to the protection that ozone provides. **Conclusion:** Statement 2 is **not a correct explanation** of Statement 1. ### Step 4: Determine the Correct Option Based on the evaluations: - Both statements are true. - Statement 2 does not explain Statement 1. Thus, the correct option is: - **Option 2:** Statement 1 is true, Statement 2 is true, and Statement 2 is not a correct explanation for Statement 1. ### Final Answer: - The correct answer is **Option 2**. ---
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