Question

If a crop of wheat removes 20 kg of nitrogen per hectare of soil, what mass in kg of the fertilizer calcium nitrate would be required to replace the nitrogen in a 10 hectare field. [N=14;O=16; Ca-40). [1171kg)​

Answer 1

Explanation:

A circle is a shape consisting of all points in a plane that are at a given distance from a given point, the centre; equivalently it is the curve traced out by a point that moves in a plane so that its distance from a given point is constant.