Question

(B) Match the following.
A
1. Nitrogen
2. Oxygen
3. Photosynthesis
4. CNG
5. Smoke and dust
6. Argon
B
variable
Carbon dioxide
0.9%
21% of air
cleaner fuel
4/5 part if air​

Answer 1

Answer:

nitrogen - 4/5 part of air

oxygen - 21% of air

photosynthesis - carbon dioxide

cng - cleaner fuel

snoke and dust - 0.9%

argon - variable

Answer 2

Answer:

1)4/5part if air

2)21%of air

3) carbon dioxide

4)cleaner fuel

5)0.9%

6) variable