20 Questions to Help Me Understand Current Knowledge and Potential Growth
Removing a small amount of oxygen gas.
Removing a small amount of barium oxide.
Adding helium gas to the vessel.
Lowering the temperature.
1.0
3.0
7.0
13.0
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
Wait!
Here's an interesting quiz for you.