With reference to Red Soil, answer the following:(a) How is it formed?(b) Why is it good for Dry Farming?

(a) Red soil is formed as a result of weathering of crystalline and metamorphic rocks. This process leads to the formation of fine grained red soil. The red color of the soil comes from the high percentage of iron content.

(b) Red soil is good for dry farming because it has excellent draining properties. It doesn't retain water like other types of soil, which makes it suitable for crops that don't require a lot of water. Furthermore, red soil is rich in iron and potassium, which are essential nutrients for many crops. However, it is typically low in nitrogen, phosphorous, and humus, so it may require fertilization for optimal crop growth.