A windbreak or shelterbelt is a plantation usually made up of one or more rows of trees or shrubs planted in such a manner as to provide shelter from the wind and to protect soil from erosion. They are commonly planted around the edges of fields on farms. If designed properly, windbreaks around a home can reduce the cost of heating and cooling and save energy. Windbreaks are also planted to help keep snow from drifting onto roadways and even yards. Other benefits include providing habitat for wildlife and in some regions the trees are harvested for wood products.

Correct Option: C

A windbreak or shelterbelt is a plantation usually made up of one or more rows of trees or shrubs planted in such a manner as to provide shelter from the wind and to protect soil from erosion. They are commonly planted around the edges of fields on farms. If designed properly, windbreaks around a home can reduce the cost of heating and cooling and save energy. Windbreaks are also planted to help keep snow from drifting onto roadways and even yards. Other benefits include providing habitat for wildlife and in some regions the trees are harvested for wood products.

Some of the indirect uses of forests include: prevention and control of soil erosion, flood control, checks on spread of deserts, increase of soil fertility, and effect on climate. Forests play a significant role in the prevention and control of soil erosion by water and wind. The destruction of forest cover leads to increased runoff of rain water and its diminished seepage in soil.

Correct Option: B

Some of the indirect uses of forests include: prevention and control of soil erosion, flood control, checks on spread of deserts, increase of soil fertility, and effect on climate. Forests play a significant role in the prevention and control of soil erosion by water and wind. The destruction of forest cover leads to increased runoff of rain water and its diminished seepage in soil.

Soil salinity is the salt content in the soil; the process of increasing the salt content is known as salinization. Excess irrigation leads to increase in soli salinity since water is absorbed by plants and salts are left behind in the soil and eventually begin to accumulate. Salination from irrigation water is also greatly increased by poor drainage and use of saline water for irrigating agricultural crops.

Correct Option: C

Soil salinity is the salt content in the soil; the process of increasing the salt content is known as salinization. Excess irrigation leads to increase in soli salinity since water is absorbed by plants and salts are left behind in the soil and eventually begin to accumulate. Salination from irrigation water is also greatly increased by poor drainage and use of saline water for irrigating agricultural crops.

Black soils are often referred to as regur but are popularly known as “black cotton soils,” since cotton has been the most common traditional crop in areas where they are found. Black soils are derivatives of trap lava and are spread mostly across interior Gujarat, Maharashtra, Karnataka, and Madhya Pradesh on the Deccan lava plateau and the Malwa Plateau.

Correct Option: D

Black soils are often referred to as regur but are popularly known as “black cotton soils,” since cotton has been the most common traditional crop in areas where they are found. Black soils are derivatives of trap lava and are spread mostly across interior Gujarat, Maharashtra, Karnataka, and Madhya Pradesh on the Deccan lava plateau and the Malwa Plateau.

Leaching refers to the loss of water-soluble plant nutrients from the soil, due to rain and irrigation. As water from rain, flooding, or other sources seeps into the ground, it can dissolve chemicals and carry them into the underground water supply. Mineral nutrients lost from the soil system become unavailable for plant uptake.

Correct Option: C

Leaching refers to the loss of water-soluble plant nutrients from the soil, due to rain and irrigation. As water from rain, flooding, or other sources seeps into the ground, it can dissolve chemicals and carry them into the underground water supply. Mineral nutrients lost from the soil system become unavailable for plant uptake.