Chapter 11 The Atmosphere

Which of the following describes an example of the atmosphere acting as a system?

• its layered structure

• global wind patterns

• its composition

• deep ocean currents

What percent of our atmosphere is made up of gases other than oxygen and nitrogen?

• 1%

• 5%

• 10%

• 2%

What is the most abundant gas in the Earth's atmosphere?

• Nitrogen

• Oxygen

• Carbon Dioxide

• Hydrogen

Instruments used to measure air pressure are called ____________.

• thermometers

• hygrometers

• hydrometers

• barometers

The less mass in a given volume of air, the:

• more the air weighs.

• more dense the air.

• greater the air pressure.

• less dense the air.

The layer of our atmosphere in which weather occurs is the _____________.

• troposphere

• stratosphere

• mesosphere

• exospere

Earth's rotation makes global winds curve. What is this called?

• The Coriolis Effect

• The Convection Effect

• The Gloabl Effect

• The Rotational Effect

As you rise upwards in the atmosphere, what happens to the air pressure?

• It doesn't change.

• It increases.

• It decreases.

• It increases, then decreases.

Local winds differ from global winds because they:

• are caused by unequal heating within a small area.

• are caused by differences in cloud cover.

• are due to unequal rainfall.

• are not influenced by air masses.

Cool air tends to:

• be less dense and flow over warm air.

• be lifted up by more dense warm air.

• be more dense and flow under warm air.

• mix easily with warm air.