Atmosphere

What is the lowest region of the atmosphere called?

• Troposphere

• Stratosphere

• Mesophere

• Thermosphere

How high does the troposphere extend above the surface of the Earth?

• 5 km

• 10 km

• 13 km

• 20 km

What does a thermometer measure?

• Air pressure

• Wind speed

• Air temperature

• Water in the air

In which century did meteorologist begin using weather balloons?

• Nineteenth century

• Twentieth century

• Eighteenth century

• Twenty-first century

What is the function of a barometer?

• Measures wind speed

• Measures air temperature

• Measures air pressure

• Measures wind direction

Which layer of the atmosphere is above the troposphere?

• Mesosphere

• Stratosphere

• Thermosphere

• Exophere

What are jet streams?

• Layers of the atmosphere

• Air currents that flow eastward in the stratosphere

• Instruments used to measure wind speed

• Weather balloons used to gather data

In winter, how fast can jet streams move?

• Over 100 km per hour

• Over 200 km per hour

• Over 300 km per hour

• Over 400 km per hour

What role do jet streams play in weather patterns?

• They measure air pressure

• They push fronts through countries and shift storm systems

• They create high temperatures

• They determine the humidity levels

Why recharges in the stratosphere not throughly understood by meteorologists?

• Because they are not significant

• Because they are too complex

• Because they are easy to measure

• Because they are not affect weather