Atmosphere

Which layer of the atmosphere has meteors?

• troposphere

• stratosphere

• mesosphere

• thermosphere

Which layer of the atmosphere contains the ionosphere?

• troposphere

• stratosphere

• mesosphere

• thermosphere

Which layer of the atmosphere has weather?

• troposphere

• stratosphere

• mesosphere

• thermosphere

Which layer of the atmosphere contains the ozone?

• troposphere

• stratosphere

• mesosphere

• thermosphere

What do you call the part of the atmosphere where molecules escape into space?

• magnetosphere

• ionosphere

• exosphere

• ozonosphere

What protects the earth from harmful UV rays from the sun?

• clouds

• ionosphere

• nitrogen gases

• the ozone

Earth's current atmosphere is

• 78% nitrogen, 21% oxygen, 0.9% argon, and 0.1% other gases

• 78% oxygen, 21% nitrogen, 0.9% argon, 0.1% other gases.

• mainly a mixture of carbon dioxide (CO2), nitrogen (N2), and water vapor (H2O)

• 100% oxygen

The four main layers of the atmosphere in order from bottom to top are

• troposphere, stratosphere, mesosphere, thermosphere

• troposphere, mesosphere, ionosphere, thermosphere

• mesosphere, thermosphere, troposphere, stratosphere

• thermosphere, stratosphere, mesosphere, troposphere

The layer of the atmosphere containing the ozone layer is

• troposphere
• stratosphere
• thermosphere
• mesosphere

Heat from the sun travels to Earth by _____.

• conduction
• convection
• insulation
• radiation