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SCIENCE (foundation)
chemistry paper two
chemistry of the atmosphere
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Created by
charlotte
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Cards (28)
What is the topic of this video?
The
chemistry
of the
atmosphere
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What are the subtopics covered in this video?
Evolution
of the atmosphere
Greenhouse gases
Carbon footprints
Reducing carbon footprints
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Where can the pages from this video be found?
On the Etsy page linked in the
description
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What is the first phase in the evolution of the atmosphere?
Volcanoes releasing
gases
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What gases were primarily in the early atmosphere?
Mostly
carbon dioxide
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What did volcanoes release besides carbon dioxide?
Nitrogen
,
water vapor
,
methane
, and
ammonia
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How does the early atmospheric composition compare to Mars?
It was
similar
to that of Mars
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What happened during Phase 2 of atmospheric evolution?
Oceans, algae, and green plants absorbed
CO2
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What formed the oceans during Phase 2?
Condensed
water vapor from
volcanoes
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What process did early plant forms undergo to remove CO2?
Photosynthesis
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What do modern green plants and algae produce?
Oxygen
through
photosynthesis
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What is the current composition of the atmosphere?
About
80%
nitrogen
and
20%
oxygen
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What are greenhouse gases?
Gases that insulate the Earth's
atmosphere
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What is the greenhouse effect?
It reflects
radiation
from the
Sun
back to Earth
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How does the greenhouse effect relate to climate change?
It contributes to
global warming
and climate change
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What type of radiation penetrates the greenhouse gases?
Short wavelength
radiation
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What happens to radiation after it reflects off the Earth?
It turns into
long wavelength radiation
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What is the consequence of thicker greenhouse gas layers?
More long
wavelength
radiation stays in
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What human activities increase greenhouse gases?
Deforestation
, burning
fossil fuels
,
agriculture
, waste
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What is deforestation's impact on CO2 levels?
Less CO2 is absorbed from the
atmosphere
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How does burning fossil fuels affect carbon levels?
Releases carbon that was previously
locked up
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What gas do cows produce that contributes to greenhouse gases?
Methane
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What does waste decomposition release into the atmosphere?
CO2
and
methane
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What is a carbon footprint?
A measure of
greenhouse gases
released
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Why can measuring a carbon footprint be complicated?
It involves
many
factors
to
consider
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How can a carbon footprint be reduced?
Use
renewable
or
nuclear
energy
Implement efficient processes
Reduce waste
Promote fuel-efficient transport
Educate on carbon footprint awareness
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What is the next topic after the chemistry of the atmosphere?
Using
resources
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What should viewers do if they have questions?
Leave comments for the
creator
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