Question

What is filled in the bulb of a thermometer in arctic region​

Answer 1

Answer:

I think mercury

Explanation:

I'm not sure better you search in google

Answer 2

Answer:

mercury thermometer

In a mercury thermometer, a glass tube is filled

In a mercury thermometer, a glass tube is filled with mercury and a standard temperature scale is marked on the tube. With changes in temperature, the mercury expands and contracts, and the temperature can be read from the scale.

HOPE THIS ANSWER HELPS YOU...