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How does the density of air in a deep mine compare with the air density at the earth's surface?
Wiki User
∙ 13y ago
Air is compressible (i.e. when you squish it it gets denser). This means that the air at the top of the atmosphere is less dense than the air lower down in the atmosphere because the weight of the air above squishes the air below it. If you go up in a lift in a tall building, your ears 'pop' because the air at the top is less dense than the air was at the bottom.
As you go down a mine there is more air above you than at the top of the mine shaft so the air gets progressively denser the deeper you go. At the bottom of the mine the air is, therefore, more dense than at the earth's surface.
Wiki User
∙ 16y ago
Wiki User
∙ 13y agoTo a first effect, the air in the deep mine will be greater due to it supporting a taller column of air that it was at the surface. Additionally, as air is compressible, this will further increase the density of air.
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What will happen if the density of surface water in the lake does not change?
The water will be calm, because a change in density causes water to move and can also cause deep water currents
What is the difference between a surface current and a deep current?
A surface current is on the surface and a deep water current is deep beneath the surface.
Currents are caused by temperature and density differences?
deep
What Current are caused by temperature and density differences?
deep
What is a sentence for the word density?
"The density of a substance is defined as the ratio of its mass to its volume."Deep within the Sun, gravity increases the density, and allows fusion to occur.""In pancakes, the density is very important; the fluffier, the better."
What is the primary difference between surface currents and deep currents?
Compare and contrast surface currents and deep currents. They are both are moving water that flows through oceans. Surface currents are towards the top of the ocean, can be warm or cold, and are controlled by winds. Deep currents are low, deep in the ocean, cold, and are controlled by density.
How does magma move from a chamber deep within the earth to earths surface?
this answer has to do with density if magma becomes less dense than rock it will rise to the top ,for example vegetable oil in water.
What is the earths surface from the edge of a continent to the deep part of the ocean?
continental shelf
What type of rock can form deep below earths surface or above?
igneous
If Heat and pressure deep beneath the earths surface can change any rock into?
... the fluid state we call 'lava'.
Why are density currents so important to marine life in the deep ocean?
Retain the oxygen absorved at the surface layer, as well as the tempeature, salinity, and density.
Which theory explains the processes that shape the Earths surface into mountains deep-sea trenches and oceanic ridges?
plate tectonics
Heat and pressure deep beneath Earths surface can change any rock into rock into?
... the fluid state we call 'lava'.
A supply of water that lies deep beneath earths surface?
the water that lays under the ground is called ground water.
How are ores deep beneath earths surface removed?
Through Mine Shafts, and Conveyor Belts that go far under.
How could a scientists use igneous rocks to study the materials found deep below earths surface?
because the igneous rock comes from below earth's surface
Describe the two steps of upwelling?
Upwelling is water raising from deep in the ocean to the surface. It can be caused by wind ar density currents.
