The Atmosphere Flashcards

1
Q

Troposphere?

A
Troposphere:
*0 to 12 km, contain 75% of gasses.
*here living and weather occurs
*height 👆,Temperature 👇
➕Tropopause: located at top, the layer separates it from stratosphere. 
☑️jet stream found here, Strong winds.
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2
Q

Stratosphere?

A

🔸12 to 50 km,
🔸constant temp -60•c
🔸contain Ozone layer.
🔸absorb UV rays cause ⬆️ temp

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3
Q

MESOSPHERE:

A

🔹50 to 80 km, temp ⬇️ -100•c
🔹coldest region
🔹layer that protect earth from meteroids by burning it down

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4
Q

Thermosphere:

A

▫️80km to up.
▫️it means heat sphere.
▫️temperature ⬆️ coz UV radiation, it reaches 2000•c
➕IONOSPHERE: Lower part, 80 to 550km,
🔻Gas particle absorb UV & X-Ray radiation
🔻helps in radio communi coz radio waves bounced off the ions back to earth.
➕EXOSPHERE: upper part of thermo
🔺550km ↗️1000 km
🔺thin air
🔺area where satellites orbit earth.

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5
Q

EXOSPHERE?

A

▪️upper part of thermospehere

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6
Q

Atmosphere?

A
  • Divided into layers
  • Gravity pushes layers of air down on earth’s surface(air pressure)
  • 99% of atmosp’s mass in below 32km
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