Choose the right answer from the four alternatives given below.
Which one of the following is the most widespread and most productive category of soil?
‘Regur Soil’ is another name for the.
Which one of the following is the main reason for the loss of the top soil in India?
Arable land in the irrigated zones of India is turning saline due to which of the following reasons?
Answer the following questions in about 30 words.
What is soil?
What are the main factors responsible for the formation of soil?
Mention the three horizons of a soil profile.
What is soil degradation?
What is the difference between Khadar and Bhangar?
Answer the following questions in not more than 125 words.
What are black soils? Describe their formation and characteristics.
What is soil conservation? Suggest some measures to conserve soil.
How do you know that a particular type of soil is fertile or not? Differentiate between naturally determined fertility and culturally induced fertility.