Environmental issues
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- In the exam pattern: First Stage Computer Based Test (CBT-I), General Awareness: 15 questions, 15 marks (RRB notice, 13 Aug 2026).
- Next exam day: CBT-II exam (expected): 15 Feb 2027 (Expected — an estimate, not announced).
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Take a full mock →Q1 · Environmental issues · EASY
Which of the following substances is primarily responsible for the depletion of the stratospheric ozone layer?
Q2 · Environmental issues · MEDIUM
The 'Red Data Book' published by the International Union for Conservation of Nature (IUCN) provides information on which of the following?
Q3 · Environmental issues · EASY
Along with oxides of nitrogen, which gas released mainly by burning coal and petroleum is a major cause of acid rain?
Q4 · Environmental issues · MEDIUM
In the context of biodiversity conservation, what is the primary difference between an ex-situ conservation method and an in-situ conservation method?