100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
Summary Geology of Natural Disasters (ENVS 2250) - Exam Review CA$5.18
Add to cart
Quickly navigate to
Preview
  2.  
  3. University Of Guelph (U Of G )
  4.  
  5. Environmental Science
  6.  
  7. ENVS 2250 (ENVS2250)

Summary

Summary Geology of Natural Disasters (ENVS 2250) - Exam Review
 48 views  0 purchase

Exam review of all of the concepts covered in ENVS 2250 - Geology of Natural Disasters, taught at the University of Guelph. All hand-written notes.

Preview 2 out of 12  pages

Document information

  • August 20, 2020
  • 12
  • 2019/2020
  • Summary

Subjects

Written for

All documents for this subject (1)

Seller

avatar-seller
studyingwithcass

Reviews received

Content preview

Unit 1 - The Layers of the Earth
STRUCTUREOFEARTH
Lifeexistswithinthebiosphere
Earth'scoreismadeprimarilyofironandnickelandhasasolidinnercoresurroundedbyaliquid
outercore
Themantleis alayerofsilicaterockbetweenthecoreandcrust
DensityofEarth'smaterialsdecreasesasyoumoveoutwardsfromthecentre
THECORE
Theoutercoreconsistsofsiliconsulphuroxygenandpotassium
Heatisgeneratedintheoutercoreduetothedecayofradioactiveisotopes
Thesolidinnercorespinsabout10fasterthantherestofEarthwhichisthoughttocausethe
magneticfield
MAGNETICFIELD
Deflectsharmfulsolarradiation
Solarwindisamixtureof X raysradioemissionsionizedgaseshydrogenatoms protonsand
electrons
Magneticfieldisthoughttobeproduced byconvectionandrotationinthespinningliquidoutercore
EverysooftentheNorthandSouthmagneticpolesreverse
MANTLE
Makesupmorethan80 ofEarth'svolume
Densityofthemantlecanbedeterminedbyseismicwaves
Basalticmagma'scompositiongivesinsightonthecompositionofthemantle
Slowconvectivemovementsoccurwithinthemantle drivingplatetectonics
Rocksinthemantlehaveaplasticbehaviour
CRUST
Oceaniccrustisthinnerandrelativelyyoung
Oceaniccrustisdenserthancontinentalcrust
causingtheoceaniccrusttoalmostalwayssubduct
beneaththecontinentalcrust
Oceaniccrusthasabasalticcomposition
Continentalcrustis thickerandmucholder
Continentsaremainlycomposed ofgranite
CentralcontinentalcrustiscomposedofancientArcheanrocks
Centralpartsofcontinentshavefewearthquakesandvolcaniceruptions
THEHYDROSPHERE
IncludesallwateronEarthinallofits3States
Water'sheatcapacityhelpsbufferEarth'ssurfacetemperature
Warmwaterrises coldwatersinks
Iceislessdensethanwatercausingittofloat
Water'sdensestat40C
coldarcticwaterflowssouthandwarmtropicalwaterflowsnorthduetoconvectioncurrents
Corioliseffectdeflectsequatorialstothe
rightintheNorthernHemisphereandtotheleftintheSouthern
Hemisphere
THEATMOSPHERE
Absorbssolarradiation recycleswaterandchemicals andworkswiththemagneticfieldtoprovide a
moderateclimateonEarth
Layersoftheatmosphereareclassifiedbythermalcharacteristicschemicalcompositionmovementand
density
Composedof79 nitrogen20.7 oxygen and0.04 carbon dioxide

, Layersfromtoptobottomare troposphere stratospheremesosphere andthermosphere
Troposphere
WhereEarth'sweatherisgenerated
Densestlayeroftheatmosphere
Warmairrisesandmixeswithcolderair creatingconvection
stratosphere
Dryandlessdensethanthetroposphere
Temperaturegraduallyincreaseswithaltitude
ly duetolittleverticalmixing
Convective stable
Mesosphere
Temperaturedropsasyouincrease inaltitude
Thermosphere
Highestandthickestatmosphericlayer
Temperatureincreaseswithaltitude
Containstheionospherewhereaurorasaregenerated
SPECIALFEATURES OFTHEATMOSPHERE
WhenUVradiationstrikesoxygenmolecules itcancausetheformationofozone Os
chtourofherocarbonsareorganicchemicalsmadeupofcarbon fluorinechlorine2ndhydrogen
Destroysatmosphericozone
TheozonelayerpreventsharmfulradiationfromreachingEarth'ssurface
Thegreenhouseeffecttakesplacein thestratosphere
Greenhousegasesabsorbthelongwaveradiationre radiatedofftheEarth'ssurfacepreventing
thisradiation
frombeingreleasedbackintospacetherebycausingglobalwarming
Aerosolsareformednaturallybywinderosionvolcaniceruptions orlargemeteoriteimpactsbutcanalsobe
createdbyhumansthroughindustrialactivitiesandtransportation
sunlightcausingacoolingeffectatEarth'ssurface
Aerosolsscatter

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller studyingwithcass. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for CA$5.18. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

53068 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
CA$5.18
  • (0)
Add to cart
Added