Finals 3 Flashcards
•Is the blanket of gas that surrounds the entire planet and
extends to the edge of space
Atmosphere
LAYERS OF THE EARTH’S ATMOSPHERE
FROM TOP TO BOTTOM
Exosphere
• Thermosphere
• Mesopause
• Mesosphere
• Stratopause
• Stratosphere
• Tropopause
• Troposphere
•o
- Lowest and thinnest Layer
- This is where we live
Troposphere
Boundary between the
troposphere, and the stratosphere is
called the
tropopause
- Second lowest layer
- Temp increases with height
Stratosphere
Almost no weather occurrence
•Upper boundary is called
stratopause
Majority of meteors burn up
Mesosphere
Very few molecules
- readily absorbs solar radiation
- reflects radio waves
- Auroras
Thermosphere
- outermost layer of the
atmosphere
Exosphere
STRUCTURE OF ATMOSPHERE
Stratospheric ozone is good ozone
Tropospheric ozone is bad ozone
—protects Earth from harmful UV radiation
—depletion is detrimental to life
Stratospheric ozone is good ozone
—In the troposphere, ozone is a pollutant .
• CFCs (pollutant)
Tropospheric ozone is bad ozone
These are naturally occurring
gases in the atmosphere that
absorbs and emits radiant
energy
Greenhouse gas
•Is a natural process of
trapping heat caused by
Greenhouse Gases and
preventing it from
escaping thus keeping
the Earth Warm
Greenhouse effect
Categories of pollutants
Primary
Secondary
Categories of pollutants
Primary
Secondary
PRIMARY
POLLUTANTS
CARBON MONOXIDE (CO)
NITROGEN DIOXIDE (NO2)
SULFUR DIOXIDE (SO2)
LEAD (Pb)
VOLATILE ORGANIC COMPOUNDS (VOCs)
PARTICULAR MATTER
PM 2.5 & PM 10
Directly added to the
atmosphere
PRIMARY
POLLUTANTS
Formed when primary
pollutants interact with
sunlight, air, and other
pollutants
SECONDARY
POLLUTANTS
a molecule that consists of
three oxygen atoms bonded
to one another
- Also known as Bad ozone
SURFACE/GROUND LEVEL
OZONE (03)
Is the accumulation of potential
acid-forming particles on the
surface.
ACID DEPOSITION/ACID RAIN
Rain, snow, fog, dew, and even dry particles which have
an unusually low pH (acidic) are commonly considered
together
ACID DEPOSITION/ACID RAIN
a molecule that consists of three
oxygen (O3) atoms bonded to one
another when UV radiation from the
sun strikes oxygen molecules in air
(O2)
OZONE (O3)
serves as the Earth’s shields from the harmful effects
of ultraviolet light radiation which causes skin cancers, cataracts in
humans and increased mutations in all living things
Ozone layer
A group of green house gases have been used in aerosols,
such as hairspray cans, fridges and in making foam plastics
CHLOROFLUOROCARBONS (CFCs)
state of the atmosphere at a
particular place during a
short period of time.
Weather
refers to the long-
term, predictable
atmospheric conditions of a
specific area; it does not
address the amount of rain
Climate
refers to seasonal changes over a long
period of time
Climate change
Naturally occurring green house gases in atmosphere
OZONE (03)
Water Vapor (H20)
FACTOR OF CLIMATE CHANGE
NATURAL FACTORS
ARTIFICIAL FACTORS
NATURAL FACTORS
VOLCANIC ERUPTIONS
OCEAN CURRENT
EARTH ORBITAL
CHANGES
SOLAR VARIATION
FOREST FIRE
ARTIFICIAL FACTORS
HUMAN ACTIVITIES
EMISSION OF GREEN
HOUSE GASES
SOLAR RADIATION
The Earth makes one full orbit around the
sun each year.
EARTH ORBITAL CHANGES
A wildfire is any uncontrolled fire in
an area combustible vegetation that
occurs in countryside or wilderness
area.
FOREST FIRE
When a volcano erupts it throws out large
volumes of Sulphur dioxide (SO2), water
vapor, dust, and ash into the atmosphere
VOLCANIC ERUPTIONS
The oceans are major component of
the climate system.
OCEAN CURRENT
There is strong evidence that the
climate change over the last half-
century has been caused largely by
human activity, such as the burning
fossil fuels and including
agriculture and deforestation
HUMAN ACTIVITIES
EFFECT OF GLOBAL WARMING
SEA LEVEL RISING
• GLOBAL TEMPERATURE RISING
• HEALTH RISK
• MELTING POLAR ICEBERGS
AND GLACIER
• ARCTIC SEA ICE LOSS
