Question

Read the following points with regard to increase in water availability for use and choose the most appropriate option.

1. Recycle and reuse of water
2. Washing cars for keeping them clean
3. Use of low quality water for cooling in industries
4. Domestic use water for gardening

• A. Only I, II and III are correct.
• B. Only I, III and IV are correct.
• C. Only I, II and IV are correct.
• D. Only II, III and IV are correct.

Hint:

Recycling, using low quality water in industries and reusing home water for gardening raise availability. Washing cars with fresh water wastes it.

Answer 1

The Correct Option is B

Step 1: Understand the idea:
Water availability for use increases when we save water, reuse it, or use lower quality water for jobs that do not need clean water.
Wasting clean water does the opposite.

Step 2: Check point I:
Recycling and reusing water lets the same water serve more than once. This raises the water available for use. So I is correct.

Step 3: Check point II:
Washing cars only to keep them clean uses a lot of fresh water for a small purpose. It adds to waste. So II is not correct.

Step 4: Check point III:
Cooling in industries does not need pure water. Using low quality water there keeps good water for drinking and farming. So III is correct.

Step 5: Check point IV:
Water already used at home (for washing) can be used for gardening. This reuses water instead of drawing fresh water. So IV is correct.

Step 6: Match with options:
Correct points are I, III and IV. This is option (B).
Options (A), (C) and (D) each include II, which is a wasteful practice, so they are wrong.

Final Answer:
Only I, III and IV are correct, so option (B) is right.