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Chemistry Paper 2
Chemistry of The Atmosphere
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aqib
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Cards (22)
What has changed over the course of Earth's history in atmospheric chemistry?
The
composition
of gases in the atmosphere
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Why do we need to extrapolate to understand past atmospheric conditions?
Because historical records are limited
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What was likely the primary gas in the early atmosphere?
Nitrogen and carbon dioxide
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How did carbon dioxide likely dissolve in the oceans?
From water vapor
condensing
from
volcanoes
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What can trap carbon dioxide in the geological record?
Sediment rocks
and
fossil fuels
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What process do algae and plants use to convert CO2 into oxygen?
Photosynthesis
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What is the current level of CO2 in the atmosphere?
0.018%
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What gases absorb longer wavelength radiation to keep the Earth warm?
Water vapor,
carbon dioxide
, and
methane
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What is the greenhouse effect?
It keeps the
Earth
warm by
trapping
heat
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How have CO2 levels changed since the Industrial Revolution?
They have
increased
significantly
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What percentage of the greenhouse effect is caused by water vapor?
95%
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What does the AQA specification say about modeling complex systems?
It's
incredibly hard to model
them
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What has been the trend of IPCC models over the last 20 years?
They have been
wildly incorrect
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What was the public reaction to the term "carbon footprint" in the mid-2000s?
People
became
very
concerned
about
it
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What is carbon monoxide and why is it dangerous?
It binds to
red blood cells
, reducing oxygen transport
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What are the characteristics of carbon monoxide?
Odorless
and
colorless
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What pollutant is released when fossil fuels are burned?
Sulfur dioxide
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What environmental issue is caused by sulfur dioxide?
Acid rain
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What health problems can nitrogen oxides cause?
Breathing
problems
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What is particulate carbon and how is it formed?
It is made from
incomplete combustion
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What health issues can particulate carbon cause?
It can cause
various
health
issues
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What are the main components of atmospheric chemistry discussed?
Composition of gases
in the atmosphere
Historical changes in gas levels
Role of
photosynthesis
in oxygen production
Greenhouse gases
and their effects
Impact of
pollutants
on health and environment
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