Layers of the Atmosphere

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What happens to meteors in the mesosphere?

meteors burn up upon entry

What would happen if our atmosphere consisted of pure oxygen.

Everything would burn up coming in

What is the uppermost region of outer space?

Exosphere

What is important about the Troposphere?

It contains weather and oxygen that we breathe.

What is the lower boundary of the exosphere called?

The critical level of escape to the outer space

Mesosphere

The middle layer of Earth's atmosphere; the layer in which most meteoroids burn up; contains stars; the coldest layer of the atmosphere

Where is the coldest place on Earth?

Top of the mesosphere.

The Thermosphere extends 250 to 550 miles and is the __________________ layer of the earths atmosphere.

biggest

What is the outermost layer of the Earths atmosphere

exosphere

Thermosphere comes from the Greek word thermos which means ___________.

heat

In the Thermosphere, ultraviolet radiation causes ________ which is also called the ionsphere.

ionization

What are 4 things our atmosphere does for us?

1-air, 2- protects us, 3-Radiation shield, 4- Gives us life

The troposphere is _____ miles from the equator?

10

How many miles des the mesosphere extend above Earth?

31-53 miles

How many miles high is the exosphere span?

400-800 miles

How big is the troposphere?

5-7 miles above earth.

The mesosphere covers the next ______ miles beyond the stratosphere.

50

The Thermosphere is _______ miles above the Earths surface.

53

What is the distance of the stratosphere from Earth?

7 miles

How thick is the Earth's mesosphere?

75- 249 miles thick.

What kind of life forms can be found in the stratosphere?

Biological bacteria

What weather occurs in the stratosphere?

No clouds, smaller wind currents and pretty calm.

The Stratosphere is the _________ layer of the atmosphere from the ground surface?

second

From earth, burning meteors appear to be _____ _______.

shooting stars

The Thermosphere layer is helpful in _______________.

short wave radio communication

Troposphhere

the layer closest to Earth, where almost all weather occurs; the thinnest layer

Stratosphere

the layer of the atmosphere that is above the troposphere and in which temperature increases as altitude increases; the ozone is also found here

Thermosphere

the uppermost atmospheric layer; contains the Ionosphere; contains the Aurora Borealis and Aurora Australis


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