1.

Match the following.1. Oxygen(a) 78%2. Nitrogen(b) 0.93%3. Argon(c) 0.03%4. Ozone(d) 0.0006%5. Carbon-di-oxide(e) 21%

Answer»

1. (e) 

2. (a) 

3. (b) 

4. (d) 

5. (c)



Discussion

No Comment Found