Air

Climate is described as _____ weather conditions

• Annual

• Long term, regional

• Temporary

• Temporary, local

• Stable and unchanging

The atmospheric zone where most weather events occur is the

• Stratosphere

• Thermosphere

• Troposphere

• Mesosphere

The two main gases making up the lower atmosphere are

• Helium & Hydrogen

• Oxygen & Methane

• Carbon Dioxide & Nitrous Oxide

• Nitrogen & Oxygen

The ozone hole that causes concern among scientists and the public is an ozone depletion in which layer?

• Troposphere

• Thermosphere

• Stratosphere

• Mesosphere

Much of the ultraviolet light from the sun is absorbed by ____ as it passes through the atmosphere.

• Carbon dioxide

• water vapor

• Nitrogen gas

• Ozone

Energy absorbed at the Earth's surface is radiated back to space in the form of

• Visible Light

• Ultraviolet Radiation

• Infrared Radiation (heat)

• Microwaves

The boundary between two air masses of different temperature and density is known as a

• Cold front

• Warm Front

• Front

• Air mass

Rising, expanding warm air masses create a region of

• Low Pressure

• Warming air

• High Pressure

• Dry air

When an area of the Earth's surface becomes very hot, the air above it.

• Condenses and cools

• Warms, expands and rises

• Expands, and sinks

• Condense and sinks

____ are examples of secondary pollutants.

• Aerosols

• Volatile Organic Compounds

• Photochemical Oxidants

• Combustion Gases