Unit 3 study guide

What different atmospheric conditions are tracked by

meteorologists?

• Tornadoes, earthquakes, volcanic eruptions
• Cloud cover, lightning strikes, UV index
•  Atmospheric pressure

   Relative humidity

   Wind speed

   Wind direction

   Visibility

   Cloud cover

   Precipitation

   Temperature

• Solar flares, moon phases, auroras

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

What are the 3 most abundant gases in dry atmosphere?

• – Nitrogen (78.08%)

  – Oxygen (20.95%)

  – Argon (0.93%)

• Neon
• Carbon Dioxide
• Helium

Define Aerosols.

• Aerosols are large solid particles suspended in the air.
• •Tiny solid and liquid

  particles that can remain

  suspended in the air

  •Inorganic: mineral dust,

  salts, sulfates

  •Organic: pollen,

  bacteria, molds, viruses

• Aerosols are only found in outer space.
• Aerosols are invisible gases in the atmosphere.

What are the different origins
of aerosols?

• •Over Land: picked up by

  the wind, fires, and

  human activities

  •Over Ocean: Salts and

  sulfates

• Space debris, nuclear testing fallout, cosmic radiation, underground mining
• Desert sandstorms, ocean currents, forest fires, urban pollution
• Household cleaning products, cooking fumes, perfume sprays, body odor

What is the relationship of atmospheric pressure and altitude
(elevation)?

• Constant
• •Pressure decreases with altitude
  •More concentrated near the surface

• Proportional
• Direct

Where is atmospheric pressure highest?

• Death Valley
• Mariana Trench

• Sea Level

• Mount Everest

What are the different thermal layers in our atmosphere in oder?

• Stratosphere, Troposphere, Mesosphere, Thermosphere, Exosphere
• Troposphere, Stratosphere, Mesosphere, Exosphere, Thermosphere
• Mesosphere, Troposphere, Stratosphere, Thermosphere, Exosphere
• Troposphere, Stratosphere, Mesosphere, Thermosphere, Exosphere

What level of the atmosphere is the ozone concentrated?

• Mesosphere
• Troposphere
• • Stratosphere (10 to 50 km above the surface)

• Exosphere

What benefit does ozone provide? What does ozone filter
out?

• Ozone filters out harmful carbon dioxide.
• Ozone filters out beneficial oxygen.
• Ozone filters out visible light.
• • Absorbs harmful UV radiation.

What has decreased the ozone in the stratosphere (i.e. ozone
hole)?

• Global warming
• Deforestation
• Acid rain
• • Chlorofluorocarbons (CFCs) from refrigerants, Styrofoam

  puffing agents, aerosol spray cans