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 thew codes given below :

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Q: 61 (IAS/2011)
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 thew codes given below :

question_subject: 

Ecology

question_exam: 

IAS

stats: 

0,352,103,26,37,40,352

keywords: 

{'biodiversity': [2, 0, 2, 9], 'human existence': [0, 0, 0, 1], 'crops': [6, 1, 6, 7], 'soil': [7, 0, 4, 7], 'basis': [2, 1, 3, 7], 'waste': [1, 0, 1, 4], 'pollination': [3, 0, 0, 0], 'recycling': [2, 0, 0, 1]}

Biodiversity plays a crucial role in maintaining the ecological balance, and it forms the basis for human existence in various ways.

Soil formation: Biodiversity helps in the formation of soil by decomposing organic matter, which enriches the soil with nutrients and makes it fertile.

Prevention of soil erosion: The roots of various plants hold the soil together, preventing soil erosion due to wind or water.

Recycling of waste: Biodiversity helps in the recycling of waste by decomposing organic matter and converting it into useful nutrients for other organisms.

Pollination of crops: Many crops depend on pollinators like bees, butterflies, and birds for pollination, which helps in the production of fruits and seeds.

Therefore, all the given options are correct, and the correct answer is option 4: 1, 2, 3, and 4.