Download Chapter 15 study guide

Chapter 15 study guide
Meteorology
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Nitrogen is the most abundant gas in the atmosphere.
CO 2 is the gas used by plants.
Altimeter is a barometer that shows feet of elevation.
Torricelli invented the barometer.
O3 -- ozone
O2 -- gas given off by plants
HNO 3 -- nitric acid
Coal -- fossil fuel
Bacteria -- return nitrogen to the atmosphere
The atmosphere is the layer of gases that surround Earth.
Earth's atmosphere traps energy from the sun which allows water to exist as a liquid.
The two most abundant gases in the atmosphere are nitrogen and oxygen.
Ozone is a form of oxygen with three oxygen atoms in each molecule.
Air contains gases and particles.
Nearly half of the pollution caused by humans comes from driving cars.
Burning fossil fuels causes nearly half of the air pollution.
Photochemical smog results from the interaction of pollutants in the presence of sunlight.
Air has pressure because it has mass.
The less mass in air, the less dense the air is.
The National Weather Service measures air pressure in units called millibars.
Farther up in the atmosphere air pressure decreases.
The main layers of the atmosphere are classified according to changes in temperature.
The layer in our atmosphere in which weather occurs is the troposphere.
The ozone layer in the stratosphere absorbs ultraviolet radiation.
Radio waves are reflected back to earth in the ionosphere.
Earth's atmosphere is a thin layer of gases that surround Earth.
The density of a fixed volume of air increases as mass increases.
As altitude decreases, the density of the air increases.
Dry air is 78% nitrogen and 21% oxygen.
People live in the troposphere, or inner layer of the atmosphere.
The condition of Earth's atmosphere at a particular time and place is known as weather.
Because the atmosphere traps solar energy, water exists in liquid form on earth for living
things to use.
One result of air pollution is acid rain, which is a precipitation that contains more acid than
normal
An aneroid barometer measures air pressure by using a metal chamber that is sensitive to
pressure changes.
Satellites orbit in the part of the thermosphere called the exosphere.
The name of the molecule that is made of three oxygen atoms is ozone.
Atmospheric gas called water vapor forms clouds when it condenses.
The human activity that causes the most air pollution is the burning of fossil fuels.
Harmful particles and gases in the air are known as pollutants.
Know the names of the six layers of the atmosphere -- page 517
-- where does weather occur
-- which layer contains the ozone layer
Know three ways the atmosphere helps living things survive.
Explain how nitrogen oxides can form acid rain and how they can form photochemical smog.