Question

Please do question 3 and 4

Answer 1

here is your answer......

hope it will help you

Answer 2

Answer 3.

[a] being a source

[b] for

[c] have

[d] for

Answer 4.

1. science is a very faithful servant of mankind.

2. it helps in producing goods at large scale.

3. it also act as our medical assistant.

4. it is rightly said that science is a good servant but a bad master .