What is the major reason for using mercury (rather than water) in barometers?

Why water is not used in barometers?

Why mercury is used in barometer?

Why is mercury taken in a barometer?

What is the principle behind a mercury barometer?

Aquating animals are more confortable in cold water rather than in warm water. Give reason.

Assertion: Aquatic species are more comfortable in cold waters rather than in warm waters. Reason:Different gases have different K_(H) values at the sametemperature

The mercury barometer was invented by