Arrange the following trace gases in correct sequence of their concentration in atmosphere in descending order: (A)M ethane (B) Krypton (C) Helium (D) Neon (E) Hydrogen Choose the correct answer from the options given below:
(D), (C), (A), (B), (E)
Approximate mixing ratios in dry near-surface air are neon 18.18 ppm, helium 5.24 ppm, methane about 1.9 ppm around 2022, krypton 1.14 ppm and hydrogen 0.55 ppm. Thus the descending order is D, C, A, B, E.
Important Questions from Environment
- The evolution of environmental hazard paradigms.
List-I
(Period)List-II
(Paradigm)A. Pre-1950 I. Behavioral B. 1950-70 II. Development C. 1970-90 III. Engineering D. 1990 onwards IV. Complexity
Choose the correct answer from the options given below : - Which city was reported among the top 10 most polluted cities in the world on December 28, 2025?
The main objective of the Public Liability Insurance Act is to provide immediate relief for the victims who suffer from the accidents involving______.
- The functions of the State Pollution Control Board are laid down under __________ of the Water (Prevention and Control of Pollution) Act, 1974.
Consider the following pairs :
1. Advika: Chickpea
2. Panchamrit: India's Climate Action Plan
3. Mission Life: Life Style in harmony with ecological well-being
How many of the above pairs are correctly matched?
