Unit 4 Atmosphere

Front

What is the standard air pressure at sea level in pounds per square inch (lb/in²)?

Back

14.7

Front

What method do scientists use to define the boundaries of the layers of the atmosphere?

Back

Change in temperature

Front

True or False: Conduction requires two substances to be in contact with each other.

Back

True

Front

In which layer of the atmosphere does weather occur?

Back

Troposphere

Front

Where is the ionosphere located within the atmosphere?

Back

It starts in the mesosphere and ends in the thermosphere.

Front

What are the main layers of the atmosphere in order from the surface of the Earth?

Back

Troposphere, Stratosphere, Mesosphere, Thermosphere, Exosphere

Front

What is the primary gas that makes up the Earth's atmosphere?

Back

Nitrogen (approximately 78%)

Front

What is the role of the ozone layer, and in which atmospheric layer is it found?

Back

The ozone layer protects the Earth from harmful ultraviolet (UV) radiation and is found in the stratosphere.

Front

What is the temperature trend in the troposphere as altitude increases?

Back

Temperature decreases with increasing altitude.

Front

What is the significance of the tropopause?

Back

The tropopause is the boundary between the troposphere and the stratosphere, marking a change in temperature and weather patterns.