High- and low-pressure areas leading to air movement happen when there are differences in <u>density</u>.
<h3><u>Explanation;</u></h3>
<em><u>Atmospheric pressure or air pressure is the force exerted by air above a surface as gravity pulls it to Earth.</u></em>
Air pressure decreases with an increase in altitude. Atmospheric pressure is measured using a barometer and is an important indicator of weather.
<em><u>When a low-pressure system moves into an area, it causes cloudiness, wind, and precipitation. High pressure systems on the other hand causes a fair, calm weather.</u></em>
Anything not on the periodic table is an element non example! ... So, for a substance to be an element, all of its atoms must have the same number of protons. Examples of elements include hydrogen, lithium, nickel, and radium.
