Question

what are weeds. explain the methods to control them

Answer 1

weeds are the unwanted plants which grow without any external support it can be controled by fertilizers and manure

Answer 2

Weeds are the unwanted plants that grow in our garden or lawn.
to control the weeds :-
Controlling weeds in forage crop production may involve a wide range of techniques. Nevertheless, virtually all weed control methods may be classified into one or more of five main categories. The 5 general categories of weed control are:

Preventative Weed ControlCultural Weed ControlMechanical Weed ControlBiological Weed ControlChemical Weed Control