Earth's Atmosphere

Which layer of the atmosphere contains ozone molecule, which protect the Earth from harmful UV rays 

• Troposphere
• Stratosphere
• Mesosphere
• Thermosphere

Where do evolutionists think the oxygen in the Earth's atmosphere came from?

• Released by Volcanoes

• Produced by primitive animals

• It was formed when the Earth formed

• Produced by primitive plants and bacteria

Sunlight is the major source of energy for what?

• the water cycle
• the oceans tides
• volcanic eruptions
• tectonic plate movements

A sailboat is sailing across a bay, where does the energy come from to fill its sails?

• The Earth's rotation
• The sun
• A motor on the boat
• The water

Air holding all the water it can is called?

• Humidity
• Saturated
• Dew Point
• Relative humidity 

The ratio of water vapor in the air as compared to how much water vapor it can hold is called what?

• Dew point
• Relative Humidity
• Transpiration
• Saturated 

Why are cloudy skies less common over deserts?

• High humidity prevents cloud formation
• Constant winds keep water from evaporating
• There is not enough moisture in the air for clouds to form
• Evaporation rates in the desert are much higher than other places

Which of these ecosystems would MOST LIKELY have very high humidity?  

• Near a lake with low temperature
• In the desert with high temperature
• In the mountains with a low temperature
• Near the ocean with high temperature 

The gases that surround Earth are called the

• atmosphere
• weather
• basketball court
• meteors

The force put on a given area by weight of the air above

• computer science
• air pressure
• helium
• clouds