Discussion Forum
Que. | The amount of argon in the atmosphere |
a. | 0.03% |
b. | 78% |
c. | 0.90% |
d. | 0.30% |
Correct Answer:0.90%
|
Que. | The amount of argon in the atmosphere |
a. | 0.03% |
b. | 78% |
c. | 0.90% |
d. | 0.30% |
Correct Answer:0.90%
|