Lorenz Hiltner is recognized as the first scientist to coin the term “rhizosphere” in 1904. The word is derived from the Greek word ‘rhiza’, meaning root, and ‘sphere’, meaning field of influence. Hiltner defined the rhizosphere as the zone of soil immediately adjacent to legume roots that supports high levels of bacterial activity.

Correct Option: C

Lorenz Hiltner is recognized as the first scientist to coin the term “rhizosphere” in 1904. The word is derived from the Greek word ‘rhiza’, meaning root, and ‘sphere’, meaning field of influence. Hiltner defined the rhizosphere as the zone of soil immediately adjacent to legume roots that supports high levels of bacterial activity.

Soil erosion takes place when the soil is blown away by the wind or washed away by the rain. Afforestation or planting trees can check soil erosion as roots of trees/plants hold the soil. Thus, when more trees are planted their roots don’t allow the soil to be blown or washed away and prevent soil erosion.

Correct Option: B

Soil erosion takes place when the soil is blown away by the wind or washed away by the rain. Afforestation or planting trees can check soil erosion as roots of trees/plants hold the soil. Thus, when more trees are planted their roots don’t allow the soil to be blown or washed away and prevent soil erosion.

Pedocal soil is characterized by an abundance of calcium carbonate and calcium oxide. Pedocals are common in arid or semiarid regions where the rate of evaporation is greater than the rate of leaching. It has low soil organic matter.

Correct Option: A

Pedocal soil is characterized by an abundance of calcium carbonate and calcium oxide. Pedocals are common in arid or semiarid regions where the rate of evaporation is greater than the rate of leaching. It has low soil organic matter.

‘Terra Rossa’ in Latin or Italian language is another name for “Red Soil” or “Red Terrain“. It is a type of red clay soil produced by the weathering of limestone. Terra Rossa is typically found in regions with a Mediterranean climate.

Correct Option: B

‘Terra Rossa’ in Latin or Italian language is another name for “Red Soil” or “Red Terrain“. It is a type of red clay soil produced by the weathering of limestone. Terra Rossa is typically found in regions with a Mediterranean climate.

Afforestation holds the key for preventing soil erosion in desert regions and further desertification. Trees or even small plants bind soil to their roots, thereby checking their loosening. Some other measures include: introduction of improved dry farming practices and animal husbandry and plantations for fuel and fodder.

Correct Option: C

Afforestation holds the key for preventing soil erosion in desert regions and further desertification. Trees or even small plants bind soil to their roots, thereby checking their loosening. Some other measures include: introduction of improved dry farming practices and animal husbandry and plantations for fuel and fodder.