Question

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

Answer 1

Answer:

a is correct statement

Answer 2

Explanation:

1. nature and

2. first to appear

3. and so small

4. that they cannot

5. if an object

6. less than 0.1

7. all thus the

8. existence of this

9. unknown till the