The graph shows altitude and atmospheric pressure.

Altitude
(feet) Air Pressure
(pounds per square inch)
sea level 14.7
10,000 10.2
20,000 6.4
30,000 4.3
40,000 2.7
50,000 1.6

In which layer of the atmosphere is air pressure the lowest?

(1 point)
Responses

the troposphere
the troposphere

the mesosphere
the mesosphere

the thermosphere
the thermosphere

the stratosphere