Answer: It is the weight of air molecules pressing down on the earth.
Explanation: Without air, then their would be no living creatures roaming around on earth.
The air around you has weight, and it presses against everything it touches. That pressure is called atmospheric pressure, or air pressure. It is the force exerted on a surface by the air above it as gravity pulls it to Earth.
Atmospheric pressure is commonly measured with a barometer. In a barometer, a column of mercury in a glass tube rises or falls as the weight of the atmosphere changes. Meteorologists describe the atmospheric pressure by how high the mercury rises.
An atmosphere (atm) is a unit of measurement equal to the average air pressure at sea level at a temperature of 15 degrees Celsius (59 degrees Fahrenheit). One atmosphere is 1,013 millibars, or 760 millimeters (29.92 inches) of mercury.
Atmospheric pressure drops as altitude increases. The atmospheric pressure on Denali, Alaska, is about half that of Honolulu, Hawai'i. Honolulu is a city at sea level. Denali, also known as Mount McKinley, is the highest peak in North America.
As the pressure decreases, the amount of oxygen available to breathe also decreases. At very high altitudes, atmospheric pressure and available oxygen get so low that people can become sick and even die.
Mountain climbers use bottled oxygen when they ascend very high peaks. They also take time to get used to the altitude because quickly moving from higher pressure to lower pressure can cause decompression sickness. Decompression sickness, also called "the bends", is also a problem for scuba divers who come to the surface too quickly.
Aircraft create artificial pressure in the cabin so passengers remain comfortable while flying.
Atmospheric pressure is an indicator of weather. When a low-pressure system moves into an area, it usually leads to cloudiness, wind, and precipitation. High-pressure systems usually lead to fair, calm weather.
Vocabulary
Term Part of Speech Definition
air
noun
layer of gases surrounding Earth.
aircraft
noun
vehicle able to travel and operate above the ground.
air pressure
noun
force pressed on an object by air or atmosphere.
altitude
noun
the distance above sea level.
atmosphere (atm)
noun
(atm) unit of measurement equal to air pressure at sea level, about 14.7 pounds per square inch. Also called standard atmospheric pressure.
atmospheric pressure
noun
force per unit area exerted by the mass of the atmosphere as gravity pulls it to Earth.
barometer
noun
an instrument that measures atmospheric pressure.
Celsius scale
noun
scale for measuring surface temperature, used by most of the world, in which the boiling point of water is 100 degrees.
cloud
noun
visible mass of tiny water droplets or ice crystals in Earth's atmosphere.
decompression sickness
noun
serious condition resulting from gases forming tiny bubbles in the bloodstream as a body adjusts to a major change in atmospheric pressure. Also known as DCS, divers disease, and the bends.
exert
verb
to force or pressure.
Fahrenheit scale
noun
scale for measuring surface temperature used by Belize, Liberia, Myanmar, and the United States.
force
noun
power or energy that activates movement.
gravity
noun
physical force by which objects attract, or pull toward, each other.
high-pressure system
noun
weather pattern characterized by high air pressure, usually as a result of cooling. High-pressure systems are usually associated with clear weather.
low-pressure system
noun
weather pattern characterized by low air pressure, usually as a result of warming. Low-pressure systems are often associated with storms.
mercury
noun
chemical element with the symbol Hg.
mercury barometer
noun
tool that determines atmospheric pressure by measuring how much mercury moves in a glass tube.
meteorologist
noun
person who studies patterns and changes in Earth's atmosphere.
millibar
noun
(mbar) unit of pressure equal to .001 bar of atmospheric pressure.
oxygen
noun
chemical element with the symbol O, whose gas form is 21% of the Earth's atmosphere.
precipitation
noun
all forms in which water falls to Earth from the atmosphere.
scuba
noun, adjective
(self-contained underwater breathing apparatus) portable device for breathing underwater.
sea level
noun
base level for measuring elevations. Sea level is determined by measurements taken over a 19-year cycle.
weather
noun
state of the atmosphere, including temperature, atmospheric pressure, wind, humidity, precipitation, and cloudiness.
wind
noun
movement of air (from a high pressure zone to a low pressure zone) caused by the uneven heating of the Earth by the sun.
What two scientists related the positive and negative magnetic bands on the seafloor to seafloor spreading
Answer:
F.J Vines and D.H Mattews
How is 90° north latitude different from 90° south latitude?
Answer:
One of them is the north pole, while is other is the south pole
Explanation:
This is how they are geographically on the globe.
Suppose that a group of climate scientists claims that they can predict future impacts of global climate change with 98% accuracy. Why should you be skeptical of this claim
Answer:
their predictions are based on incomplete information about species diversity and interactions of living organisms with each other and with their environments
Explanation: Quizlit is kind of cracked
You were given a promotion at work which will
cause you to move. You do not want to move but
the company warns if you do not move, they will
replace you.
Push factor or Pull factor
an environmental engineer wants to examine the permeability of different soils to determine the best natural containment system to protect groundwater from pollutants. the engineer tests four different soil samples, places them into a wet column, and pours 50ml of water over each sample. the engineer records the total amount of water that moves through the column as well as the total amount of time for the water to fully percolate through the soil. the data from the study are shown below.
According to the information of the fragment the sample of material chosen as the potential container material is the independent variable of the research.
When conducting research we have the opportunity to use different types of research. One of them is that of the dependent and independent variables.
An independent variable represents a quantity that is modified in an experiment. On the other hand, dependent variables are those that represent a quantity whose value depends on how the independent variable is modified.
According to the above, in the situation presented, it can be inferred that the independent variable is the sample of material chosen as potential container material and the dependent variable is the results of the investigation that will have different filtration results for each type of soil.
Note: This question is incomplete because the question is missing. Here is the question:
Which of the following best describes the independent variable in this research design?Learn more in: https://brainly.com/question/15711678
Explain one way in which geography and trade routes combined to aid the development of cities in medieval europe.
The way in which the geography and trade routes combined to aid the development of cities in medieval europe is that its allow facilitate easy exportation of goods to neighborhood continents.
The medieval towns in Europe began as the centers for trade, but they soon became places where many goods were produced.
In the medieval Europe cities, both the trade and production of goods were overseen by the organizations called the guilds.Hence, the way in which the geography and trade routes combined to aid the development of cities in medieval europe is that its allow facilitate easy exportation of goods to neighborhood continents such as Asia and Africa.
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What is so unique about Madagascar’s ecosystem?
Answer:
Madagascar is unusual not only for its endemic species, but also for the species that are conspicuously absent.
Explanation:
How long was the longest earthquake in california.
Answer: It struck just after 5:00 pm local time and lasted for about 15 seconds, with a moment magnitude of 6.9
India instituted the "one child policy," program that included incentives and penalties to assure that a couple only produced one child
Answer:
one child policy is correct
Match the terms with their description/definition
what are the advantages and disadvantages of building dams?? please help
Answer:
Advantage:
They control the floods because water can be stored in them, and they are the primary source of power generation.
Disadvantage:
Disrupt paths of fishes that are traveling in the same river
Explanation:
What is the biosphere.
Answer:
The biosphere is made up of the parts of Earth where life exists.
The biosphere is the regions of the surface, atmosphere, and hydrosphere.
please give brainliest I only need 1 more
In the Northern Hemisphere, the winds associated with a low pressure system (cyclone) blow ________.
Answer:
winds blow clockwise and outward from the center of anticyclones
Explanation:
Which of the following is not one of Europe’s four major ethnic groups? A. Germanic B. Latin C. Basque D. Slavic Please select the best answer from the choices provided. A B C D.
Answer: C. BASQUE
Explanation: In using the linguistics as a parameter for grouping the people in Europe in large basic ethnic groups
Answer:
b
Explanation:
edge 2021
Phân tích những thuận lợi của vị trí địa lí và tài nguyên thiên nhiên ở hoa kì
what layer is a semisolid and acts like a plastic?
Answer: The Asthenosphere
Explanation: The asthenosphere is solid upper mantle material that is so hot that it behaves plastically and can flow. The lithosphere rides on the asthenosphere.
What caused the rise of largely African American neighborhoods in northern US cities? A. affinity segregation B. class segregation C. racial segregation D. ethnic identity
Answer:
C. racial segregation
Explanation:
//Answer:
Its C ...........................................................................................................................
Explanation:
ecudators modern goverment is best described as
Answer:
a democracy dealing with corruption and instability.
Answer:
A democracy dealing with corruption and instability.
Explanation:
Hope this helps!
Why are small dams better than large dams in Pakistan?
Answer:
Because Pakistan doesn't have big rivers enough to break small dams I believe
why do you think there are more computers and telephones in Greece than Bulgaria
Answer:
this is because Greece was the world power and might be the first to invent telephones and computers
Explanation:
that's what I think
Can some please help me please I will give 30 points of answer is right and marked as brainliest also no links please
Answer:
B: looking where the 1800s mark is it looks like it grew rapidly
I hope this is brianly enough
how does training help to foster a profession
Answer:
Training can help employees understand how their work fits into their company's structure, mission, goals and achievements. As a result, employees can become more motivated and excited about their work as they understand how what they do matters to the success of the organization.
Explanation:
Also that pic makes me highly doubt your 18+. lol
Answer:
Explanation:
Training can help employees understand how their work fits into their company's structure, mission, and goal
Hola, nescesito que respondan esto xd
4) ¿Qué Indicador es fundamental para salir de la pobreza? ¿Por qué?
5) ¿Cuáles son los 5 países con mayor y menor calidad de vida del continente? Cuando investigues sobre esto no olvides colocar el año de la información, ya hay variaciones según pasan los años, por lo tanto trata de buscar los datos más actualizados posible
Answer:
ahhhwahtyousaiyngmedoitninderstandy
Answer:
Un indicador es la salud
y estos países son:
.Níger
.República Centroafricana
.Sudán del Sur
.Chad
.Burundi
BRAINLIST ???
what is the difference between an earthflow and a debris flow?
Answer:
A debris flow is the movement of a water-laden mass of loose mud, sand, soil, rock and debris down a slope. ... An earthflow is a flow of fine-grained material that typically develops at the lower end of a slope. Earthflows often ooze down a mountain at a pace of a slow-moving earthworm.
Have an awesome day! :D
the primary reason phytoplankton are concerned about buoyancy is that they _________.
Answer:
cannot photosynthesize below the photic zone
Explanation:
Hope this helps :)
Have an amazing day <3
In the Northern Hemisphere cold currents tend to flow from the ____________. In the Southern Hemisphere warm currents tend to flow from the ________________.
In the North hemisphere cold current tend to basically flow from the North. In the Southern hemisphere warm currents tend to flow from the North is the correct answer.
What is Southern Hemisphere?Southern hemisphere is known to be that half of the equator which is gradually south to the equator and current flow in north because Indian ocean is actually blocked by the continental masses in north.
Northern hemisphere is known to be as the half of the earth which is basically north of the equator and current flow in north because of Coriolis force.
Therefore the current flow from the North in both Northern and Southern Hemisphere.
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Does capitalism have order?
the great dividing range is the longest mountain range on which continent?
Answer:
The highest place in Australia, the 2,228 m (7,310 ft) Mount Kosciuszko, resides in the Snowy Mountains portion of southern Great Dividing Range.
Recent studies of ice ages Choose one: A. have identified glacial events by analyzing oxygen-isotope ratios in marine sediments. B. suggest that the entire Earth was covered by glacial ice in the Pleistocene. C. reveal fewer ice ages and less complexity than were originally thought. D. have identified paleosols that form during glacial periods.
There are several ice ages that has taken place here on earth. Recent studies of ice ages have interpreted glacial events by analyzing the oxygen isotope ratio in marine sediments.
The Ice Age is a very popular timeframe in history. It is known to be a long time of decreasing in the temperature of Earth's surface and atmosphere.This can also lead to the presence or expansion of continental and polar ice sheets and alpine glaciers.
The Earth's climate is said to often alternates inbetween ice ages and greenhouse periods. In this period, there will be no glaciers on the planet.
Scientists have recorded at least five important ice ages in the Earth's history.
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Which economic activity benefits from the extensive railroad network built in Europe?
А
Mining
B
Fishing
C Tourism
D
Oil drilling