Question

3. What is a manometer used to determine?

A the difference between two densities
B the difference between two forces
C the difference between two heights
D the difference between two pressures​

Answer 1

D the difference between two pressures​

Step-by-step explanation:

A manometer is a device used to measure the difference between the pressure in a place. Manometer is solely used to determine gas pressure.

• The device compares gas pressure to atmospheric pressure at any given point.
• It measures pressure against a fixed reference or with respect to a differential pressure in a place.
• The column of liquid is the medium it uses to measure the pressure differences.
• Pressure is the force exerted per unit area.