The atmosphere also contains tiny ________, or solid
pieces. These particles are things like dust and dirt (279)
Gases in the atmosphere, such as water
vapor and carbon dioxide, absorb heat energy coming
from Earth. Then, they radiate it back to Earth’s surface.
This is known as the __________ _____. (287)
______ pollutants are
pollutants that are put directly into the air. (295)
____ _______
are narrow belts of very high-speed winds in the upper
troposphere and lower stratosphere. (292)
es.
At an altitude of about 15 km, however, it starts to increase.
This marks the beginning of the _________. (282)
________ are wind belts
that are found between 30° and 60° latitude. (290)
This increase in temperatures all over the world is called _______ ________. (287)
Energy travels from the sun to Earth by
________, which means that it travels through space as
waves. (285)
_________ ______ also move heat through the
atmosphere. (286)
This deflection, or
curving, of moving objects from a straight path because of
Earth’s rotation is called the ______
_____. (291)
________ means "heat". (283)
An ____ ________ is anything in the air that can
damage the environment or make people or other organisms
sick. (295)
Cars, motorcycles, trucks, buses,
trains, and planes all give off exhaust. ______ is a gas
that contains pollutants that create ozone and smog. (296)
Above the ozone layer, at an altitude of about 50 km,
the temperature begins to drop again. This marks the bottom of the ________. (282)
There is also water in the
atmosphere. Some of it is invisible, in the form of a gas
called _____ _____. (279)
________ pollutants form when primary pollutants
react with each other or with other substances in the air. (295)