Atms., Weather, Climate & Severe Weather Test

The gas that makes up the majority of the atmosphere is?

• nitrogen

• oxygen

• helium

• hydrogen

The primary source of energy is

• water

• sun

• wind

• earth

Wind is NOT caused by differences in air pressure

• air pressure

• density

• temperature

• altitude

Which layer of atmosphere is the final boundary between the planet's atmosphere and space?

• exosphere

• thermosphere

• mesosphere

• stratosphere

In which layer does all weather take place?

• thermosphere

• mesosphere

• stratosphere

• troposphere

What percentage of nitrogen is found in the atmosphere?

• 21%

• 78%

• 1%

• 99%

In which layer are the auroras found?

• ionosphere

• troposphere

• stratosphere

• mesosphere

What are the auroras called that take place in the Northern Hemisphere?

• aurora australis

• aurora borealis

• sprites

What is the % of oxygen found in the atmosphere?

• 21%

• 78%

• 1%

• 100%

In which layer is the temperature strongly influenced by solar activity?

• stratosphere

• thermosphere

• troposphere

• mesosphere