Practice RRB Group D Environment 2025 PYQ questions with answers and explanations. This collection covers important Environment and Ecology questions asked in the RRB Group D 2025 examination, helping you revise key concepts, understand question patterns, and improve your accuracy for upcoming Railway exams. Exam Dates: August 3, 4, 5, 6, 9, 10, 11, 12, 13, 14, 17, 18, 19, 20, 21, and 25, 2026.
31
As of March 2026, India’s position as the fourth-largest global wind energy producer contributes to which of the following national priorities under SDG frameworks?
RRB Group D
25 Aug, 2026 (12:45 PM - 2:15 PM)
2026
32
If a non-biodegradable chemical enters the food chain at a concentration of 0.02 ppm in water , what will happen over time?
RRB Group D
04 Aug, 2026 (12:45 PM - 2:15 PM)
2026
33
In a food chain, the maximum concentration of non-biodegradable pollutants would be found in:
RRB Group D
12 Aug, 2026 (12:45 PM - 2:15 PM)
2026
34
Why does biological magni
RRB Group D
21 Aug, 2026 (9:00 AM - 10:30 AM)
2026
35
Which way did the Sangam Tinai classi
RRB Group D
09 Aug, 2026 (4:30 PM - 6:00 PM)
2026
36
Which of the following organisms is likely to occupy more than one trophic levels?
RRB Group D
20 Aug, 2026 (12:45 PM - 2:15 PM)
2026
37
A prolonged drought in a forest causes widespread plant death. Based on the Earth's interconnected spheres, a likely consequence of this is:
RRB Group D
17 Aug, 2026 (9:00 AM - 10:30 AM)
2026
38
A conservation biologist is designing a strategy to protect the Nilgiri tahr , which is found only in a speci
RRB Group D
14 Aug, 2026 (12:45 PM - 2:15 PM)
2026
39
In a grassland ecosystem, which organisms will show the largest number of individuals?
RRB Group D
11 Aug, 2026 (4:30 PM - 6:00 PM)
2026
40
What is the primary objective of India’s National Clean Air Programme (NCAP) by 2025–26?
RRB Group D
21 Aug, 2026 (9:00 AM - 10:30 AM)
2026
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