(a) What are the two ways of sowing the seeds ?
A .Seeds can be sown manually or by seed drills.
(b) Give any three advantages of ploughing.
A . Ploughing has following advantages :
(i) Loose soil has lot of air trapped which allows roots to breathe.
(ii) Loose soil allows the roots to penetrate deeper.
(Hi) Loose soil helps the growth of microbes and other organisms