Answer: A
Explanation: the only way to turn it from blue to yellow is to mix it with an acidic solution.
The movement creates a difference in air pressure.
- When warm air rises it goes up to top of atmosphere.
- The cold air remains at bottom.
- Which makes a blank space in between.
- To fill that space air comes from all sides
- Which makes difference in pressure.
- It becomes reason for creation of Tornado, hurricane,Cyclones etc
I think it is A correct me if i am wrong hope this helps
The answer is a. 1.4
Hope it helps.