Saline soil contains A. High concentration of salt B. Lot of moisture C. Hard rocks D. None of the above

The correct answer is A. High concentration of salt.

Saline

soil is a type of soil that has a high concentration of salt. This can be caused by a number of factors, including the presence of salt-rich groundwater, the use of salt-based fertilizers, and the evaporation of water from the soil. Saline soils can be difficult to grow crops in, as the high salt concentration can damage plant roots.

Option B is incorrect, as saline soils do not necessarily have a lot of moisture. In fact, saline soils can be quite dry, as the high salt concentration can prevent water from being absorbed by the soil.

Option C is incorrect, as saline soils do not necessarily contain hard rocks. In fact, saline soils can be quite soft, as the high salt concentration can break down the soil particles.

Option D is incorrect, as saline soils do contain a high concentration of salt. This is the defining characteristic of saline soils.