Meanings :

1.  Revolutions – forcible overthrow of the government .

2.  Profound – deep .

3.  Stability – to be steady .

4.  Industrialisation – development of industries .

5.  Fundamental – basic .

6.  Commodities – things .

7.  Inaugurated – opening of .

8.  Immune – resist infection .

9.  Accumulated – gathered .

10.  Techniques – new methods .

11.  Immigration – come to live permanently in one country .

12.  Migrated – went from place to place .

13.  Surpassed – to be greater than .

14.  Installed – put in place .

15.  Foundries – factory of metal manufacturing .

16.  Loco-motives – powered railway vehicle .

17.  Consume –  to eat.

18.  Compelled – forced .

19.  Colonial – relating to colonies .

20.  Sanitation – conditions relating to public health .