Question

(7)
(a)....
Microorganisms are widely distributed in
nature found almost everywhere.
They were the first appear on earth.
They are innumerable and small
(b).....
(c).....
that cannot be seen with the
(d) ....
(e).....
naked eye. If object has a
diameter of less 0.1 mm, the eye
(f) .....
cannot perceive it at all. The
existence this microbial world was
(g) .....
unknown the invention of microscopes.
(h).... omissions​

Answer 1

Answer:

nature and found

first to appear

If an object

less than 0.1

unknown without the