Human Impact Flashcards
The oxygen we breath contains ______ ______ ____ bonded together
2 oxygen atoms
ozone molecule consists of
1 oxygen atom
ozone is ________ if we breath it
harmful
what does ozone do in the stratosphere and why is it important to us
protects life by absorbing harmful UV rays from the sun
stratospheric ozone is destroyed by man made and natural
pollutants
describe why lack of ozone is bad for life on earth
will give us UV rays, cancer, and global warming
we live in the
troposphere
list of layers of atmosphere, ground-up
troposphere, stratosphere, mesosphere, thermosphere, exosphere
How does temperature change in each layer
as altitude increases?
decrease in temperature = density of the air molecules
Oxygen molocule we breathe
o2
Oxygen molocule in ozone
o3
are regions in the stratosphere
where little ozone remains
ozone holes
ozone holes develop annually in the _____ regions
polar
____ ______ concentrate the ozone-destroying
chemicals in the polar region.
air currents
accelerate the reactions that destroy
ozone
ice particles
years where the polar ozone holes have grown larger
1980’s-2015
years where the polar ozone holes have begun to repair
with warmer winter temperatures and reduced
pollution
2016-2018
inject volcanic gases high
into the atmosphere.
explosive volcanic erruptions
One of these volcanic gases,____ _____, has an effect on
ozone.
sulfur dioxide
sulfur dioxide’s _______ reflect some _____ _______ back into
space, causing the Earth’s surface to ____ — an effect
that typically lasts for _____.
aerosols, solar radiation, cool, years
also hasten the depletion of the ozone
aerosols
What happens to heat from the sun
Heat hits the ground and some bounces back
What do Greenhouse gases do?
They trap the heat that is bouncing back
What would happen if we didn’t have GHG?
The Earth’s average temperature would be below
freezing.
