Question

We see gardeners adding black porous substance in the soil. How does this substance help the

plants?
Please answer the following questions fast please its urgent
subject - biology ​

Answer 1

The black porous substance is humus. It is rich in nutrients, water and minerals needed for plants growth. It nourishes the plant and make the plant healthier.

Answer 2

there are many tiny pores in charcoal so once applied to soil the pores will allow air to diffuse into the soil . Plants roots need air to breathe and in meanwhile the tiny pores will hold water and nutrients and later supply it to the plants