| List-I (Concept) | List-II (Proposed by) |
| (A) Ecology | (II) Norman Myers |
| (B) Ecosystem | (IV) Ernst Haeckel |
| (C) Human population growth | (I) Sir Arthur Tansley |
| (D) Hot spots | (III) T R Malthus |
To solve the problem of matching concepts with the individuals who proposed them, we need to identify the historically accurate connections based on our knowledge of environmental studies:
Thus, the correct answer is: (A) - (IV), (B) - (I), (C) - (III), (D) - (II)
The correct matching of concepts with their proposers is (A) - (II), (B) - (III), (C) - (IV), (D) - (I).
Additional Context:
Correct Answer: (3) (A) - (II), (B) - (III), (C) - (IV), (D) - (I).
Rearrange the following parts to form a meaningful and grammatically correct sentence:
P. a healthy diet and regular exercise
Q. are important habits
R. that help maintain good physical and mental health
S. especially in today's busy world