Resources and D...

________ soil that has very poor fertility.

Which of the following statements represents characteristics of black soil?
1) It develops cracks during hot weather
2) Iron content present in this soil turns into iron oxide due to diffusion.
3) It's made of fine clay particles
4) It retains moisture for long

What among the following best describes 'waste land'?

A few gram seeds were placed in each of the three pots A, B, and C containing soil. The soil in Pot A is mixed with some green twigs and leaves. The soil in pot B is mixed with old cow dung while soil of pot C is mixed with urea. Pots are watered regularly. Which of the following will be observed after 10 days?

It is important to make small check dams across the flooded gullies because they-
(i)   hold water for irrigation.
(ii)  hold water and prevent soil erosion.
(iii)  recharge ground water.

Mulching is associated with use of ________________.

Match List - I with List - II and select the correct answer by using the codes given below the Lists :

Which soil is extensively found in the northern plains of India?

What identifies one result of cash crop production in the New World?

The soil most suitable for growing cotton is _________.