Question

(i) Water logging increases the amount of salt in the soil that reduces soil fertility
(ii) 2,4 D is a common weedicide
(iii) Leguminous crops like peas and beans cannot be alternated with cereals like rice and wheat as both use large amount of nitrogen from the soil.
(iv) Manures provide specific nutrients to the soil.
(v) Paddy, maize, cotton and soyabean are examples of kharif crops while wheat ,gram, pea and mustard are examples of rabi crops.

Answer 1

Answer:

Atmospheric pressure, also known as barometric pressure, is the pressure within the atmosphere of Earth. The standard atmosphere is a unit of pressure defined as 101,325 Pa, which is equivalent to 760 mm Hg, 29.9212 inches Hg, or 14.696 psi.