Why is volcanic soil (andisol) very fertile?

a. It is rich in minerals from volcanic deposits.

b. It is a young soil with low water retention.

c. It has been leached of mineral nutrients.

d. Volcanic activity warms the soil.

The reason why volcanic soil is very fertile is because it has rich in minerals from volcanic deposits. Andisols are framed from volcanic fiery debris. Volcanic materials separate and climate to shape the absolute most fruitful soils on Earth. Volcanic sl. ag regularly contain minerals that are valuable to plants, and in the event that it is fine cinder it will separate rapidly and get blended into soil.

The answer is A. it is rich in minerals from volcanic deposits