Atmosphere

In which layer of the atmosphere do most satellites orbit Earth?

• stratosphere

• mesosphere

• exosphere

• troposphere

Airplanes fly in which layers of the atmosphere

• troposphere and stratosphere

• troposphere, stratosphere, and mesosphere

• troposphere, stratosphere, and thermosphere

• exosphere

Which layer of the atmosphere contains the ozone layer?

• exosphere

• mesosphere

• stratosphere

• exosphere

The ozone layer found in the stratosphere is important because

• it blocks UV light

• it increases temperature

• it blocks rain

• it makes weather

As altitude increases in the troposphere, the temperature

• increases (gets hotter)

• does not change

• decreases (gets colder)

Which layer of the atmosphere protects us from meteors?

• troposphere

• stratosphere

• mesosphere

• exosphere

The layers of the atmosphere are classified (defined) according to changes in

• altitude and air quality

• altitude and temperature

• temperature and air pressure

When you climb a high mountain, you lose your breath more easily because

• the air pressure is greater

• the air is denser

• amount of oxygen decreases

• amount of oxygen increases

In which layer of the atmosphere is the majority of water vapor (weather) found?

• thermosphere

• troposphere

• stratosphere

• exosphere

Which of the lists below shows gases from most to least abundant in Earth's atmosphere?

• oxygen, nitrogen, argon

• argon, nitrogen, oxygen

• nitrogen, oxygen, argon