Question

ways of replenishing the soil

Answer 1

Answer:

Adding organic matter in the form of compost and aged manure, or using mulch or growing cover crops (green manures), is the best way to prepare soil for planting.

Explanation:

Adding chemical fertilisers will replenish only certain nutrients and do nothing for maintaining good, friable soil.

Answer 2

Answer:

Ferry's black body consists of a hollow double-walled sphere which is blackened inside. The sphere has a small hole on its surface. Directly opposite to hole, there is a wedge shaped structure inside the sphere.