Atmosphere Basics

What gas needed to be established in Earth’s atmosphere before the atmosphere was able to absorb and maintain heat?

• Carbon Dioxide

• Nitrogen

• Oxygen

• Hydrogen

What is one way human actions can affect the atmosphere?

• Burning fossil fuels reduces convection

• Passing through the atmosphere using airplanes and rockets disrupts the jet stream

• Burning fossil fuels releases carbon dioxide, increasing the greenhouse effect

Tags

NGSS.MS-ESS3-5

What is the name for the blanket of air (mixture of gases) surrounding the Earth?

• Cyanobacteria

• Atmosphere

• Clouds

• Ozone

What do scientists base the division of the atmosphere on?

• Sudden changes in air pressure

• Sudden changes in temperature

• Sudden changes in magnetic declination

The ozone layer protects life on Earth from …

• Ultraviolet Rays

• Gamma Rays

• Infrared Rays

• X-Rays

What is the greenhouse effect?

• The warming of Earth’s atmosphere by radiation

• The process in which the atmosphere prevents energy from leaving Earth, trapping heat

• The heating of Earth by the Sun

Tags

NGSS.HS-ESS2-4

NGSS.HS-ESS2-6

NGSS.HS-ESS3-5

Which layer of the atmosphere is most dense?

• Stratosphere

• Thermosphere

• Troposphere

• Mesosphere

As you go higher in the troposphere, the temperature …

• Decreases

• Increases

• Stays the Same

What most likely formed the first abundance of oxygen in Earth’s atmosphere?

• Trees

• Blue-green algae (Cyanobacteria)

• Dinosaurs

• Crinoids

Which of the following is the correct composition of Earth’s modern atmosphere?

• 78% oxygen, 21% nitrogen, 1% other

• 78% nitrogen, 21% oxygen, 1% other

• 50% oxygen, 50% nitrogen

• 75% oxygen, 25% nitrogen