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.
Answer:
egocentric thinking
Explanation:
Egocentric thinking: In psychology, the term "egocentric thinking" is determined as a child's tendency to look for everything which is happening around him or her as if it is specifically related to herself or himself. However, psychologists state that egocentric thinking won't be considered as "selfishness" because small children are not able to understand or comprehend someone else's viewpoint.
In the question above, the given statement signifies that the child is experiencing "egocentric thinking".
Hey There!
Americans decreased their family size in the 20th century because, the government offered an incentive if the family size stayed small. So the answer would be C.
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Answer:
arson is a felony while trespassing is a misdemeanor
Explanation:
Arson is the deliberate burning of buildings which is a serious felony while trespassing is a misdemeanor because all your doing is being somewhere unlawfully.
Answer:
Problems could arise from this obligation to obey the orders of political leaders.
Explanation:
A problem could arise In a situation where the political leader performs an action that could be considered as going against the Constitution of the United States.
For instance, if a political leader solicits help from a foreigner to help him win an election and his political aide is in the know of this, the aide is caught between upholding the integrity of the Constitution of the United States and reporting to the relevant authorities OR keeping quiet if told to do so by the political leader.
