Question

Match List I with List II.

List I Pollutant	List II Source
A. Microorganisms	I. Strip mining
B. Plant nutrients	II. Domestic sewage
C. Toxic heavy metals	III. Chemical fertilizer
D. Sediment	IV. Chemical factory

Choose the correct answer from the options given below:

• A. A-II, B-III, C-IV, D-I
• B. A-II, B-I, C-IV, D-III
• C. A-I, B-IV, C-II, D-III
• D. A-I, B-IV, C-III, D-II

Answer 1

The Correct Option is A

The question involves matching pollutants with their most likely sources. Let us analyze each pollutant and map it to its correct source:

1. Microorganisms: These typically originate from organic waste, which is abundant in domestic sewage. This matches option A with II.

   Therefore, A-II is correct.

2. Plant nutrients: Nutrients like nitrogen and phosphorus are common in chemical fertilizers used in agriculture to promote plant growth. These fertilizers can lead to nutrient pollution. This matches B with III.

   Therefore, B-III is correct.

3. Toxic heavy metals: These are often a result of industrial activities, notably from chemical factories, which may use or produce heavy metals as part of their processes. This matches C with IV.

   Therefore, C-IV is correct.

4. Sediment: Sediment pollution is frequently the result of erosion associated with activities like strip mining, which disturbs the land and exposes soil and sediments to erosion. This matches D with I.

   Therefore, D-I is correct.

So, the correct matching is A-II, B-III, C-IV, D-I, which perfectly fits with the given option:

A-II, B-III, C-IV, D-I

Hence, the correct answer is A-II, B-III, C-IV, D-I.