7th Grade Weather Test Prep

Which of the following is not one of the reasons an atmosphere is important on earth?

• It is an important part of the water cycle
• It keeps earth's temperature moderate
• It allows humans to get all the UV radiation provided by the sun
• It provides needed substance for waves to travel

The most abundant gas in Earth’s atmosphere is:

• oxygen
• nitrogen
• hydrogen
• carbon dioxide

Respiration is in some ways the opposite of photosynthesis.  In land animals, it …

• removes carbon dioxide from the atmosphere.
• releases oxygen to the atmosphere
• releases carbon dioxide to the atmosphere
• none of the above

What would happen to the air pressure on Earth’s surface if the density of the Earth’s atmosphere were to suddenly double?

• The air pressure would decrease by half
• The air pressure would increase 2X
• The air pressure would stay the same
• The air pressure would increase 4X

As you start to climb up a mountain you notice that it is getting much colder.  What is happening to the atmosphere’s density.

• It is increasing
• It is decreasing
• It stays the same
• It disappears

Global winds are winds that occur at distinct_________________.

• Longitudes
• Latitudes
• Continents
• Oceans

In the Northern Hemisphere, the Easterlies blow to the….

• southwest
• southeast
• northweast
• northeast

Local winds blow from:

• Low to High pressure
• High to Low pressure
• West to East
• East to West

An area of high speed winds located at a high altitude between two global wind cells is called the:

• Polar Cell
• Hadley Cell
• Ferrel Cell
• Jet Stream

The Santa Ana winds blow:

• The high desert sucks cool wind off the Pacific Ocean
• Hot, dry air from the high desert blows toward the Pacific Ocean through the mountain passes.
• The mountain create moist winds and they blow toward the Pacific Ocean.
• None of the above