Question

Quality of which resource is not degraded due to pollution ?

• A. Sun
• B. Water
• C. Soil
• D. Air

Hint:

Think about the location and nature of the resource. Resources like air, water, and soil are part of Earth's immediate environment and are directly exposed to pollutants. The Sun, being an external celestial body millions of kilometers away, is not subject to Earth's terrestrial pollution.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
The question asks which of the given natural resources is not degraded in quality by pollution. Pollution is the introduction of harmful substances into the natural environment, causing adverse changes.
Step 2: Detailed Explanation:
Let's analyze the options:
(B) Water: Water quality is severely degraded by pollutants from industrial waste, sewage, and agricultural runoff. This is known as water pollution.
(C) Soil: Soil quality is degraded by pollutants like chemical fertilizers, pesticides, and industrial waste. This is known as soil pollution.
(D) Air: Air quality is degraded by the emission of harmful gases and particulate matter from vehicles and industries. This is known as air pollution.
(A) Sun: The Sun is a star, the ultimate source of energy for Earth. Pollution on Earth (in our atmosphere, water, or soil) does not affect the intrinsic quality of the sun itself or the energy it radiates. While air pollution can block or scatter some sunlight reaching the Earth's surface, it does not degrade the Sun as a resource.
Step 3: Final Answer:
The quality of the Sun is not degraded by pollution on Earth. Therefore, option (A) is correct.