6th Grade .7 Level 1

What is the primary component of Earth's atmosphere?

• Oxygen

• Nitrogen

• Carbon Dioxide

• Argon

Tags

VA.6.7.a

Which of the following gases is present in the smallest amount in the atmosphere?

• Nitrogen

• Oxygen

• Carbon Dioxide

• Argon

Tags

VA.6.7.a

As altitude increases, what happens to the air pressure?

• It increases

• It decreases

• It remains the same

• It fluctuates

Tags

VA.6.7.c

Which layer of the atmosphere contains the ozone layer?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

Tags

VA.6.7.b

What is the main function of the ozone layer?

• To trap heat

• To reflect sunlight

• To absorb ultraviolet radiation

• To produce oxygen

Tags

VA.6.7.b

How does the temperature generally change as you move higher in the troposphere?

• It increases

• It decreases

• It remains constant

• It fluctuates

Tags

VA.6.7.c

What is the relationship between air movement and weather conditions?

• Air movement has no effect on weather

• Air movement can change weather conditions

• Weather conditions determine air movement

• Air movement and weather conditions are unrelated

Tags

VA.6.7.d

Which instrument is used to measure atmospheric pressure?

• Thermometer

• Barometer

• Anemometer

• Hygrometer

Tags

VA.6.7.e

What is the primary cause of wind?

• Earth's rotation

• Differences in air pressure

• Ocean currents

• Solar flares

Tags

VA.6.7.d

Which of the following is a characteristic of the troposphere?

• It is the hottest layer

• It contains most of the atmosphere's mass

• It is where meteors burn up

• It is the outermost layer

Tags

VA.6.7.b