The cutting and gathering of crop after it
has matured is called X. After this, grains
are separated from the crop by a process
called Y. Z is the process of separating
the hay and chaff from the grains.
Which of the following statements is/are
correct regarding X, Y and Z?
A Z is done with the help of wind in which
grains along with husk is allowed to
fall from a height.
B X is done mechanically by combine
and manually by plough and harrow.
C X is the process known as threshing
whereas Y is the process known as
winnowing.
D Both (A) and (B)