. Match the implement with its uses

implement	its uses
(a) Country plough	1.Earthing up and forms ridges and furrows
(b) Chisel plough	2. Ploughing
(c) Star weeder	3. Sub-soil breaking
(d) Ridge plough	4. Weeding in dry lands

Correct option is A

Country plough is mainly used for ploughing.
Chisel plough is used for breaking sub-soil hard pan.
Star weeder is suitable for weeding in dry lands.
Ridge plough is used for earthing up and forming ridges and furrows.
Each implement has a specific agricultural function.
Hence correct matching is 2-3-4-1.