Explanation: Since air has mass, it also has weight. The pressure of air at a given place is defined as a force exerted in all directions by virtue of the weight of all the air above it.
The weight of a column of air contained in a unit area from the mean sea level to the top of the atmosphere is called the atmospheric pressure. The atmospheric pressure is expressed in various units.
Measurement of Air Pressure
Atmospheric pressure is the weight of the column of air at any given place and time. It is measured by means of an instrument called barometer.
The units used by meteorologists for this purpose are called millibars (mb).
One millibar is equal to the force of one gram on a square centimeter. A pressure of 1000 millibars is equal to the weight of 1.053 kilograms per square centimeter.
In other words, it will be equal to the weight of a column of mercury 75 cm high.
The normal pressure at sea level is taken to be about 76 centimeters (1013.25 millibars).
Vertical Variation of Pressure
In the lower atmosphere the pressure decreases rapidly with height.
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Explanation: i want to help but i need the quote
Answer:
Richard Nixon
Explanation: Richard Nixon was the 37 president of the United States 1969-1974, before he was president he was Dwight D. Eisenhower's Vice President 1953-1961 and was considered to be the most active and involved Vice president in history. He was the first U.S. president to visit Moscow, and created Dentente with the U.S.S.R. as well as improved relations with China. In his prime he was famous for never giving up as well as sometimes advising and hanging out with JFK during JFK's presidency, the man he lost to during one Presidential election. Today he is famous for the Watergate incident
<span>True. Undocumented workers are part of the informal sector
when it comes to the working industry. Usually undocumented workers are
immigrants who have no legal basis for being within the area of work that they
are involved in. It is a responsibility that they should take into consideration
because they are not adding up to the GDP growth of the economy. </span>
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Acrophony is the naming of letters of an alphabetic writing system so that a letter's name begins with the letter itself. For example, Greek letter names are acrophonic: the names of the letters α, β, γ, δ, are spelled with the respective letters: αλφα, βήτα, γάμμα, δέλτα.
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