Question

Describe two factors affecting the atmospheric pressure

Answer 1

answer

1)The 3 main factors that affect barometric (air) pressure are:

Temperature

Altitude or Elevation.

Moisture ow water vapour

2) Because of the compression, the lower layer of the atmosphere are denser and heavier than the upper layer, which are lighter and expansive. The average air pressure at sea level is high, but it goes on declining as the elevation increases. For every 900 feet of altitude, air pressure falls by 1 inch. Gravitational force of the Earth is mainly responsible for the decreasing air pressure with increasing altitude.

Answer 2

Two factors which affect the atmospheric pressure are
1. Temperature -when the temperature of a place is high its atmospheric pressure is low because hot air rises up and becomes less dense so it exerts less pressure
When the temperature of a place will be low the atmospheric pressure will be high as the cool air above the place will be dense and will therefore exert more pressure
2.Altitude Atmospheric pressure decreases with increase in altitude and it increases with decrease in altitude . As the gravity of earth attracts the atmosphere towards the ground to hold the atmosphere therefore the lower layer of the atmosphere is the densest and exerts the highest pressure. And also air becomes thin as we move up