railway RRB JE (CBT I + CBT II) Mock Test 2024 General Knowledge Ecology and Environment Ecology and Functions of an ecosystem
Which of the following are the functions of ecosystems?
1. Detoxification and decomposition of wastes.
2. Destabilization and moderation of the Earth’s climate.
3. Generation and renewal of soil fertility, including nutrient cycling.
4. Purification of air and water
Which of the statements given above are correct?
1
1, 2, and 3 only
2
1, 2, and 4 only
3
1, 3, and 4 only
4
1, 2, 3, and 4