In planting fruit bearing trees we need to observe the following elements such as climate, soil, __________ and _____________.

One of the factors to observe in planting trees is the space between trees, space between trees and streets, and space between trees and fences or wall. What factor do we consider in this?

The ideal time of the day to water the plant.

__________________ is the main energy provider in the process of making food in the plant kingdom.

It is being added to the soil to increase its productivity.