Chapter 11/12 Practice Test

Which of the following percentages of gases is correct in our atmosphere?

• 25% nitrogen, 25% oxygen, 25% carbon dioxide, 25% water
• 78% nitrogen, 21% oxygen, and 1% other gases
• 50% nitrogen and 50% oxygen
• 10% nitrogen, 80% oxygen, and 10% carbon dioxide

What are the four most common gases in dry air?

• nitrogen, oxygen, carbon dioxide, argon
• nitrogen, carbon dioxide, hydrogen, helium
• oxygen, carbon dioxide, strontium, copper
• carbon dioxide, water, helium, argon

What is the difference between weather and climate?

• weather is every day, and climate is only some days
• climate is every day, and weather is only some days
• weather is the day to day conditions, while climate is the average conditions in an area
• climate is the day to day conditions, while weather is the average conditions in the area

Which parts of the atmosphere interact?

• energy and water vapor only
• wind and air only
• clouds and sun only
• all parts of the atmosphere interact

The __ is the envelope of gases that surrounds the Earth.

• water cycle
• atmosphere
• air pressure
• wind

Hot air ________ than cold air, so it _____.

• is less dense, rises
• is more dense, sinks
• is less dense, sinks
• is more dense, rises

As you go up in the atmosphere, the air pressure

• increases
• decreases
• increases and then decreases
• decreases and then increases

Scientists use ___ and ___ to measure air pressure.

• barometers and anemometers
• mercury barometers and thermometers
• millibars and centibars
• aneroid barometers and mercury barometers

Our bodies are under a tremendous amount of pressure from the atmosphere. Why aren't we crushed?

• we are used to it
• our bodies are made for this pressure
• our pressure balances it out
• all of the above

There is a high pressure system coming into our area. What type of weather do you predict us to have?

• lots of snow
• lots of rain
• clear skies
• severe storms and wind