Paper 1 · People, Development & Environment
UGC NET 26th June 2025 Shift 1
Which of the following are true about coliform bacteria?
- 1. They are used to test water contamination.
- 2. Coliform bacteria are harmless and cause no disease.
- 3. They are found naturally in human intestinal tract.
- 4. Their presence in water is an indication of fecal contamination.
A1 & 4 only
B2 & 3 only
C1, 3 & 4 only
D1, 2, 3 & 4 ✓ Correct
Correct answer: (D) 1, 2, 3 & 4 — Coliforms are used as indicators to test water contamination (1), most of them are harmless and cause no disease (2), they live naturally in the human intestinal tract (3), and…
Explanation
★Coliforms are used as indicators to test water contamination (1), most of them are harmless and cause no disease (2), they live naturally in the human intestinal tract (3), and their presence in water signals fecal contamination (4). All four are true.
Want more like this? Create a free account to practise a full test, track your progress, and get spaced-repetition review.
Shared by Mcqkart · via Mcqkart.in