Grade 10 Academic Science

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Grade 10 Academic Science Climate Change
More about Climate Long-term and Short-Term Variations More about Global Warming Solutions and Footprints More Greenhouse Gases
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It occurs to about 500 km above the Earths
surface
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What is ATMOSPHERE?
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It includes all of the Earths water fresh
water, salt water, ice, and water vapour
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What is the HYDROSPHERE?
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Livestock (mainly cattle.) and bacteria release
this heat-trapping gas.
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What is METHANE (CH4)?
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As air rises over these, it cools and water
vapour condenses and falls to Earth as
precipitation on its windward side
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What is MOUNTAINS?
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In the troposphere, this gas is a corrosive,
toxic gas which is a component of smog.
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What is OZONE?
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It varies from 22.1O to 24.5O over a 41,000 year
period
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What is the TILT of the Earth?
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Unlike other substances, this substance expands
when it freezes.
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What is WATER?
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This is caused by the earth spinning but not in a
straight line (like a top) due to the masses of
oceans and mountains
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What is the WOBBLE of the Earth on its axis?
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Amount of radiation emitted by the Sun varies on
a periodic cycle
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What isSOLAR VARIATION?
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These release huge amounts of dust into the
atmosphere that reflects more radiation back
into space and, in the short term, cool the Earth
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What are VOLCANIC ERUPTIONS?
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While atmospheric CO2 concentrations have
increased above normal cyclic levels, this other
measure is not above normal levels
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What is TEMPERATURE?
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A term for resulting from human influence
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What is ANTHROPOGENIC?
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A natural or artificial reservoir that
accumulates and stores some carbon for an
indefinite period.
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What is a CARBON SINK?
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It is part of the large-scale ocean circulation
that is driven by differences in water density,
water temperature and salt concentrations
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What is THERMOHALINE CIRCULATION?
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A response to the output signal in the same
direction as the signal and, in a cycle, an
increase in the original output signal.
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What is POSITIVE FEEDBACK LOOP?
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Invest in ideas and wait for tomorrow
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What is TECHNOLOGICAL HOPE?
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Ignore the problem and assume the natural
processes will return the change to more normal
conditions
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What is DO NOTHING?
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A measure of human demand on the Earth's
ecosystems
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What is ECOLOGICAL FOOTPRINT?
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Do not correct the problem rather, spend
resources and energy adjusting
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What is ADAPTATION?
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It is how Ecological Footprint is measured or
represented
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What isthe NUMBER of Earths it would take to
support humanity if everybody lived a given
lifestyle?
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These gases have the ability to trap radiation
reflected off the Earths surface
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What are GREENHOUSE GASES?
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We think Greenhouse Gases do not have this, but
in reality because there is so much in the
atmosphere, they have a tremendous amount of it
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What is MASS?
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This Greenhouse Gas could have an atmospheric
life of nearly 1,000 years which means it will
remain active in the atmosphere for a very long
time
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What is CARBON DIOXIDE (CO2)?
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388 ppm
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What is 2009 ATMOSPHERIC CONCENTRATION of CO2?
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Nearly 35 of all anthropogenic Greenhouse Gases
come from the burning of fossil fuels in this
sector so you and I can move around efficiently
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What is TRANSPORTATION SECTOR?