FINAL REVIEW PT 3:
POLLUTION
EXPLAIN HOW THE
GREENHOUSE EFFECT
OCCURS.
The sun’s rays heat up Earth. The Earth reradiates the heat, which is trapped by the
greenhouse gases in our atmosphere.
LIST 3 GREENHOUSE GASES.
CO2, H2O, CH4, O3
IN WHICH LAYER OF THE
ATMOSPHERE IS BAD OZONE
FORMED?
Troposphere
IN WHICH LAYER OF THE
ATMOSPHERE IS GOOD
OZONE FORMED?
Stratosphere
IN WHICH LAYER OF THE
ATMOSPHERE IS WEATHER
FOUND?
Troposphere
WHICH LAYER OF THE
ATMOSPHERE IS CLOSEST TO
THE EARTH?
Troposphere
LIST THE LAYERS OF THE
ATMOSPHERE FROM
CLOSEST TO FARTHEST AWAY
FROM EARTH.
Troposphere, stratosphere, mesosphere,
thermosphere, exosphere
EXPLAIN HOW CFC’S
DESTROY THE OZONE LAYER
OVER THE ANTARCTIC.
CFC’s are broken into Cl atoms by the sunlight.
These Cl atoms are trapped over Antarctica by
the polar vortex winds, repeatedly destroying
ozone in this area, creating the ozone hole.
DESCRIBE THE MAKEUP OF
ATMOSPHERIC GASES IN
OUR ATMOSPHERE.
78% Nitrogen
21% Oxygen
1% All other gases
HOW IS SMOG
(TROPOSPHERIC OZONE)
CREATED?
Oxygen + Car exhaust (Nox) +
Cleaning products (Vox) + sunlight
= smog
HOW DOES DEFORESTATION
LEAD TO GLOBAL CLIMATE
CHANGE?
Forests are a major carbon sink. Without
the trees to absorb large amounts of C, the
C goes into the atmosphere, leading to
global warming.
WHERE IS THE OZONE HOLE
FOUND AND WHY IS IT
FOUND THERE?
Antarctica. This is where the polar
vortex traps CFC’s during the
winter.
HOW DOES THE AMOUNT OF
OZONE AFFECT THE AMOUNT
OF UV LIGHT THAT REACHES
EARTH?
More ozone = less UV light reaches Earth
Less ozone= more UV light reaches Earth
EXPLAIN THE DIFFERENCE
BETWEEN POINT AND NONPOINT SOURCE POLLUTION.
Point source is a single identifiable source.
Non-Point source is when pollution comes
from multiple sources (usually runoff 
pesticides, fertilizers, eroded sediment)
LABEL 1 & 2
ON THE
CARBON
CYCLE
DIAGRAM.
1- Photosynthesis
2- Respiration
LABEL 3-5
ON THE
CARBON
CYCLE
DIAGRAM.
3- Atmospheric CO2
4- Decomposition
5- Respiration from soil bacteria
LABEL 1-3
ON THE
NITROGEN
CYCLE.
1- Denitrification
2- Atmospheric N
3- Assimilation
LABEL 4-6
ON THE
NITROGEN
CYCLE.
4- Nitrogen Fixation
5- Mineralization
6- Nitrogen in the soil
WHAT NUTRIENTS CAUSE
EUTROPHICATION IF
INTRODUCED IN HIGH
AMOUNTS TO WATER
SYSTEMS?
Phosphorous and Nitrogen
WHAT IS THE PH OF WATER
THAT HAS BEEN ACIDIFIED?
Less than 7
HOW DOES OCEAN
ACIDIFICATION AFFECT
SHELLFISH?
Breaks down their shells
HOW DOES THE OCEAN
WATER BECOME ACIDIFIED?
It absorbs large amount of CO2
from the air, which is converted to
carbonic acid.