Question

Which among the following are man-made processes for the replenishment of soil nutrients?

• A. Rotational cropping
• B. Death and decay of organisms
• C. Adding organic manure
• D. Addition of chemical fertilisers

Answer 1

Answer: (A), (C), (D)

The correct options are
A Rotational cropping
C Adding organic manure
D Addition of chemical fertilisers

$\bullet$ Soil nutrients are used up by plants and are replenished or returned to the soil in many different ways.
$\bullet$ Death and decay of organisms is a natural way of adding nutrients to the soil but the process is too slow to be commercially useful.
$\bullet$ Rotational cropping, adding organic manure or chemical fertilisers etc., are man-made processes for the replenishment of soil nutrients.