Question

Which of the statement is FALSE in relation to "Ground Water"?

• A. It is likely to be free from pathogenic agents.
• B. It is more subjected to contamination than surface water.
• C. It is superior to surface water, because the ground itself provides an effective filtering medium.
• D. The supply of Ground Water is likely to be certain even during dry season.

Hint:

Groundwater's key advantages are its natural filtration (making it purer) and large volume (making it a more reliable source). Its main disadvantage is that if it does get contaminated, it is very difficult to clean up.

Answer 1

The Correct Option is B

Step 1: Groundwater properties. Step 1: Groundwater resides beneath the surface in soil, sand, and rock formations. It undergoes natural filtration.
Step 2: Statement analysis.
Step 2:

(A) True. Groundwater is often pathogen-free due to natural filtration.
(B) False. Groundwater is *less* susceptible to contamination than surface water (rivers, lakes) because of protective soil and rock layers.
(C) True. Groundwater is typically microbiologically purer than surface water due to natural filtration.
(D) True. Aquifers provide a more consistent water supply during dry periods compared to rivers and lakes.
Step 3: Identify the incorrect statement.
Step 3: Statement (B) is false; it wrongly asserts that groundwater is *more* prone to contamination than surface water.