Q. Which of the following service/s is/are provided by ecosystem?
1.Purification of air and water.
2.Detoxification and decomposition of wastes.
3.Moderation of floods, droughts, temperature extremes and the forces of wind.
Choose the correct answer from below given codes:

[A] 1 only

[B] 1 and 2 only

[C] 2 and 3 only

[D] 1, 2 and 3

Answer: D
Notes:

Explanation: Goods and Services provided by ecosystems include:

  • Provision of food, fuel and fibre
  • Provision of shelter and building materials
  • Purification of air and water
  • Detoxification and decomposition of wastes
  • Stabilization and moderation of the Earth’s climate
  • Moderation of floods, droughts, temperature extremes and the forces of wind.
  • Generation and renewal of soil fertility, including nutrient cycling.
  • Pollination of plants, including many crops Control of pests and diseases

Source: SHANKAR IAS Environment