Biodiversity forms the basis for human existence in the following ways:

1. Soil formation
2. Prevention of soil erosion
3. Recycling of waste
4. Pollination of crops

Select the correct answer using the code given below:

1. 1, 2, and 3 only
2. 2, 3, and 4 only
3. 1 and 4 only
4. 1, 2, 3 and 4 only

Explanation

All are correct

• Biodiversity forms the foundation of human existence by supporting a wide range of essential ecological processes. It contributes to soil formation through the action of microorganisms and plant roots that break down organic matter and interact with geological materials. It helps in the prevention of soil erosion as plant cover stabilises the soil and reduces the impact of wind and water.
• Biodiversity is also crucial for the recycling of waste, with decomposers like bacteria and fungi breaking down organic materials and returning nutrients to the ecosystem. Furthermore, it enables the pollination of crops, a service provided by insects, birds, and other animals, which is vital for food production. Together, these processes highlight how biodiversity underpins life-supporting systems that humans rely on every day.

Answer: (d) 1, 2, 3 and 4 | Difficulty Level: Easy