Question

Describe an activity show that to air form a higher pressure region moves toward a lower pressure region

Answer 1

Answer:

this phenomenon is called diffusion

Explanation:

general example,

when your mom cook in the kitchen you are able to sense it when you are even in another room.this is because of diffusion

Answer 2

Explanation:

List the properties of the air currents within a convection cell.

Describe how high and low pressure cells create local winds and explain how several types of local winds form.

Discuss how global convection cells lead to the global wind belts.

Vocabulary

advection

Chinook winds (Foehn winds)

haboob

high pressure zone

jet stream

katabatic winds

land breeze

low pressure zone

monsoon

mountain breeze

polar front

rainshadow effect

Santa Ana winds

sea breeze

valley breeze

Introduction

A few basic principles go a long way toward explaining how and why air moves: Warm air rising creates a low pressure zone at the ground. Air from the surrounding area is sucked into the space left by the rising air. Air flows horizontally at top of the troposphere; horizontal flow is called advection. The air cools until it descends. Where it reaches the ground, it creates a high pressure zone. Air flowing from areas of high pressure to low pressure creates winds. Warm air can hold more moisture than cold air. Air moving at the bases of the three major convection cells in each hemisphere north and south of the equator creates the global wind belts.

Air Pressure and Winds

Within the troposphere are convection cells (Figure below).

Warm air rises, creating a low pressure zone; cool air sinks, creating a high pressure zone.

Air that moves horizontally between high and low pressure zones makes wind. The greater the pressure difference between the pressure zones the faster the wind moves.

Convection in the atmosphere creates the planet’s weather. When warm air rises and cools in a low pressure zone, it may not be able to hold all the water it contains as vapor. Some water vapor may condense to form clouds or precipitation. When cool air descends, it warms. Since it can then hold more moisture, the descending air will evaporate water on the ground.

Air moving between large high and low pressure systems creates the global wind belts that profoundly affect regional climate. Smaller pressure systems create localized winds that affect the weather and climate of a local area.