Resource and Development Question Bank
1. Give the two factors that determine soil fertility. Solution: 1)The fertility of the soil is determined by its composition. Sandy soil is unsuitable for agriculture because it does not retain water, which is essential for plant survival. A blend of sand and clay is ideal in soils. 2) Soil fertility is determined by humus content. The humus content of organic farmyard manures is improved. 2. What is the classification of alluvial soil on the basis of their age? Mention their characteristics. Solution: Apart from the size of their grains or components, soils are also classified on the basis of their age. According to their age, alluvial soils can be classified as old alluvial ( Bangar ) and new alluvial ( Khadar ). The bangar soil has higher concentration of Kanker nodules than the Khadar. It has more fine particles and is more fertile than the bangar . 3. Major problem faced due to the indiscriminate use of resources by Man- Discuss. Solution: Humans used resources indiscriminately, ...