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 codes 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