Write a paragraph in your own words on each of the following.
Threshing.

Write a paragraph in your own words on each of the following. Weeding.

Write a paragraph in your own words on each of the following . Sowing.

Write a paragraph in your own words on each of the following. Preparation of soil .

Which one of the following has its own DNA ?

Write four solutions for each of the following equations. 2x+y=7

Write four solutions for each of the following equations. x-4y=0

Write four solutions for each of the following equations. pix +y=9

Write the balanced chemical equation for each of the following. On heating copper powder in a china dish the surface of the copper becomes black.

Write the balanced chemical equation for each of the following. Barium chloride solution is mixed with copper sulphate solution and a white precipitate is observed.