Layers of the Atmosphere

Which is NOT one of the four systems Earth is divided into?

• Atmosphere

• Milisphere

• Hydrosphere

• Lithosphere

Above which continent was a hole discovered in the ozone layer in 1985?

• North America

• Australia

• Antarctica

• Europe

Which layer has the hottest temperature?

• Mesosphere

• Thermosphere

• Stratosphere

• Troposphere

Which layer has the lowest air pressure?

• Mesosphere

• Troposphere

• Mesosphere

• Thermosphere

How does the Mesosphere protect Earth?

• Meteors burn up in the mesosphere due to friction

• Prevents the moon from crashing into Earth

• Contains all of the oxygen humans breath

• It is actually harmful to humans

Aurora Borealis forms in which layer of the atmosphere?

• Thermosphere

• Troposphere

• Mesosphere

• Stratosphere

What destroys Ozone

• Helium

• Oxygen

• Nitrogen

• Carbon Dioxide

What does the sun give off that is harmful to humans?

• Ultraviolet Radiation

• Steam

• Light

• Energy

What is the lowest region of the atmosphere called

• Atmosphere

• Carbon Dioxide

• Hydrosphere

• Troposphere

Which lists the three main gasses and the percentage of each in our atmsophere?

• Carbon Monoxide - 90%

  Helium - 10%

• Oxygen - 78%

  Hydrogen - 21%

  Water - 5%

• Nitrogen - 78%

  Oxygen 21%

  Argon - Less than 1%

• Nitrogen - 52%

  Oxygen - 28%

  Argon - 20%