Answer:Barometer :
Barometer is a scientific device. It is used to measure air pressure in environment. Air pressure changes with distance upper and bottom sea level.
Barometer is also used for measure altitude.
Barometric pressure has main effects on water and atmosphere conditions.
Hence, Barometer is used to measure air pressure.
Explanation:
Any elements in the same periodic group as oxygen such as sulfur, as elements are grouped together through similar properties
Adults have stem cells because they are needed to repair certain tissues in the body such as in the muscles, bone marrow, skin, teeth, heart, and liver, to name a few. Thus, they can develop into many different cell types and function to replace older and damaged tissues.
Speed = distance ÷time
speed = 4÷1=4
the answer is 4 km/hour