Question

Plants and animals take nutrients from the soil ultimately these nutrients must go back to the soil.how does this happen?

Answer 1

this has an simple answer to it and it is that in our nature all people animal or birds die the animals and birds decay inform a powder like formula which is brown in colour called as humus this humus is the ultimate source and power which goes back to the soil which is absorbed by the animals and birds and even plants

Answer 2

Very simple

Study the nitrification cycle

It will give you ur answer