Question

Two kinds of barometers are mercury barometers and __________ barometers.

Answer 1

A barometer is a scientific instrument that is used to measure air pressure in a certain environment. Pressure tendency can forecast short term changes in the weather. Many measurements of air pressure are used within surface weather analysis to help find surface troughs, pressure systems and frontal boundaries .

Answer 2

aneroid

Step-by-step explanation:

A mercury barometer has a glass tube that is closed at the top and open at the bottom. ... An aneroid barometer has a sealed metal chamber that expands and contracts, depending on the atmospheric pressure around it. Mechanical tools measure how much the chamber expands or contracts.

Hope this helps.