Question

Fill in the blanks.
1.
...... _ refer to the things that exist freely in nature for human use.
2. During the.......... period, Earth was covered with swampy forests.
3......_ is used to generate power and to manufacture other fuels like coke
and coal tar.
4...........is a mixture of hydrogen, methane, carbon monoxide and other gases.
5. Natural gas mainly consists of..............
6..........- are the chemicals derived from petroleum and natural gas.
7• The process of refining of petroleum is carried out in refineries and is called.............. ​

Answer 1

Answer:

a)2nd

b)police

c)1 lackhs

d)petrolam liquted has

c)carbon dioxdige

Answer 2

Answer:

1) natural resources

2) carboniferous

3) destructive distillation

4) coal gas

5) methane

6) petrochemicals

7) petroleum refining

hope it helps you