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Earth Science
Earth Sciene at UNCC Final Exam
142
Other
Undergraduate 1
05/09/2010

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Cards

Term
Significance of the Tropics of Cancer/Capricorn and Artic/Antartic Circles
Definition
Tropic of Cancer gets the sun directly above it at noon on June 21st for the Summer Solstice, there will be no sun below the antartic circle. Vice-Versa for Capricorn and Artic on December 21st
*Diagram
Term
Longitude
Meridians
Definition
angular distance east to west from the prime meridian
imaginary circles connecting the North and South poles
Term
Solar Radiation vs Terrestrial Radiation
Definition
radiation from the sun vs radiation omitted back from the Earth
Term
Why do we have seasons on Earth?
Definition
B/c of Axial Parallelism. The Earth's tilt and place in its revolution around the sun. Summer Solstice and Winter Solstice
Term
Lapse Rate and Average Lapse Rate
Definition
decrease rate of air temperature
*Diagram Dry Rate (10 degrees Celsius for every kilometer) until saturation then moist rate (6 degrees Celsius)
Term
Insolation
Definition
amount of radiation that strikes a specific spot
Term
Reflection/Absorption/Transmission of Radiation
Definition
reflects off/is asborbed and causes heating up/goes through, transparency
Term
What is albedo? What surfaces have high albedos?
Definition
Earth's reflection from the Sun. Fresh snow, water bodies, light roofs
Term
How do clouds heat up and cool down the surface?
Definition
clouds trap heat and block out heat
Term
What is conduction/convection/radiation?
Definition
molecule-to-molecule transfer/energy transferred through movement/energy traveling through air or space
Term
What does evaporation do to temperature?
Definition
decreases the temperature
Term
What is heat capacity? Water vs Land?
Definition
how much heat can be stored. water has a high heat capacity compared to land
Term
Which coastal cities have a bigger swing in annual temperature and why?
Definition
East coast because the weather comes from the West
Term
What is air pressure? Zonal/Meridional flow? Surface Wind?
Definition
weight of air on surface. West to East flow. West to East flow with a North/South variation. Pressure Gradient Force, Coriolis Force, friction over land.
Term
Pressure Gradient Force
Definition
drives air from areas of high pressure to areas of low pressure to create equilibrium
Term
Coriolis Force and what does it do in the Northern Hemisphere?
Definition
a "fake" force the deflects wind and PGF from a straight line.deflects wind to the right
Term
What does friction do to the wind?
Definition
slows it down
Term
Geostrophic Wind
Definition
when the wind runs parallel to the isobars; complete balance between the PGF and Coriolis Force
Term
How do you determine the windspeed?
Definition
By the pressure gradient, stronger the pressure, higher the windspeed
Term
What is convergence/divergence?
Definition
when air flows together at low pressure/when air flow spreads out at high pressure
Term
ITCZ (Intertropical Convergence Zone), where is it, how does it shift
Definition
near the equator where winds originating in the Northern and Southern hemispheres converge shifts by the rotation of the Earth, follows warm air
Term
Phases of Water
Definition
Deposition is from gas to solid (snow), Sublimation is from solid to gas, Evaporation/Condensation, Melting/Freezing
Term
Latent heat of evaporation
Latent heat of condensation
Definition
causes cooling and requires energy
causes warming and gives energy
Term
Relative Humidity
Saturation
Vapor Pressure
Definition
amount of vapor/maximum vapor the air can hold
air is holding 100% of vapor, dew follows
the pressure/weight exerted by a vapor
Term
What ways can air be lifted?
Definition
Convergence, fronts, convection, mountains
Term
When air rises/sinks, what happens to temperature?
Definition
It cools because of the work rising air does on the temperature. Sinks is opposite.
Term
How is stability defined in the atmosphere?
Definition
Stable-air is heavier than parcel
Unstable-air is lighter than parcel
Neutral-same weight
Term
Difference between cold and warm fronts
Definition
Cold fronts are steep and have thunderstorms in front of them.
Warm fronts have a gradual slope.
Term
What causes lightning and thunder?
Definition
positive charges in a cloud meet the positive charge of the ground through negative charged snow/ice crystals. Thunder is the rapid cooling of the air.
Term
3 stages of a thunderstorm development
Definition
Updraft, Mature, Dissipation (1 hour)
Term
Stages of precipitation loading
Definition
updraft, precipitation, loading, downdraft, evaporation, microburst
Term
Do hurricanes form at the equator?
Definition
No, because there is no spinning
Term
What is a climate? A climate region?
Definition
Climate is the average weather per a year. Climate region is the same climate in the same area.
Term
Two pathways of surface water?
Definition
overflow or movement into the ground
Term
Infiltration and Percolation?
Definition
infiltration enters the ground and percolation is the downward movement through the soil
Term
3 types of water found in soil.
Definition
Hygroscopic (no water), Capillary (half water), Gravitional Water (full of water).
Term
What is the zone of aeration and saturation? Border between them?
Definition
zone of aeration is abover the zone of saturation which lays on an aquiclode layer. Water table is the line between them.
Term
Aquifer vs Aquiclode
Permeable vs Impermeable
Definition
aquifer layer allows water to pass; same as permeable
aquiclode layer can't pass water; same as impermeable
Term
Effluent vs influent
Definition
effluent are when groundwater flows into a stream. Influent is when water flows into the ground.
Term
Difference between instream, nonconsumptive, and consumptive.
Definition
using water in place (swimming), use water and replace (shower), use it and don't return it (drinking)
Term
What is ultimate base level?
Definition
sea level
Term
What is a watershed/drainage divide?
Definition
Water receiving area of a water basin/ridges that seperate where precipitation drains
Term
Internal Drain?
Definition
leaves by evaporation or subsurface gravitional flow
Term
What are dissolved/suspended/bed load?
Definition
Dissolved is when the water is brown. Suspended has clothes/leafs/trash inside of it.
Bed load is when rocks are being moved at the bottom of the stream.
Term
What are braided/straight/meandering rivers?
Definition
Braided have individual channels that carve pathways. Straight are straight and run downhill. Meandering are snake-like and run down a gradual slope.
Term
What is a nickpoint?
Definition
waterfall formed from erosion of weak rock
Term
What does urbanization do to flooding?
Definition
Makes it quicker and more severe
Term
What is uniformitarianism?
Definition
assumes that the same physical process active in the environment today have been operation throughout geological time
Term
Properties of Earth's core.
Definition
Inner core is solid because of pressure.
Outer core is liquid. Both have similar temperature.
Term
What is the asthenosphere? Why is it called the plastic layer?
Definition
weak layer of liquid and solid; 10% liquid
Term
Isostatic Adjustment.
Definition
Vertical movement of the crust. Ice pushes down and crust sinks; then ice melts and the crust restores itself
Term
Sea floor spreading
Definition
lava comes out of bottom of ocean and rapidly cools causing mountains and new sea floor
Term
What is subduction? Why does it occur?
Definition
Ocean floor dives underneath continental ocean crust because it's more denser
Term
What is a plate?
Definition
huge chunk of Earth that moves in the same direction; 14 plates
Term
Difference between divergent, convergent, and transfrom.
Definition
Plates speard out, plates collide, and slide parallel
Term
What is a hot spot and how do they form Hawaii?
Definition
From mountains from rapid lava build up at the bottom of the sea. They build up quickly and then the crust moves. Restarting the process.
Term
What is salinity? Why is water known as the universal solvent?
Definition
dissolved solids; dissolves so many elements
Term
Units for salinity?
Definition
parts per thousand
Term
Why does salinity vary from place to place?
Definition
precipitation, river run-offs, evaporation
Term
What is the mixing zone?
Definition
top zone of ocean, 2% of mass, effected by wind and sun
Term
What is the thermocline zone?
Definition
18% of ocean, temperature changes throughout depth
Term
What is the deep cold zone?
Definition
80% of ocean
Term
What is the Littoral zone?
Definition
whole coastal zone
Term
How is the shoreline defined? How deep until the wind doesn't affect the ocean?
Definition
where the water meets land, 200 feet deep is where the ocean isn't affected by the wind anymore
Term
What controls the tides?
Definition
Ocean is lifted from gravity from the sun and moon.
Term
What exactly is a wave?
Definition
energy that moves across the surface.
Term
What is wave refraction?
Definition
When waves bend around irregular coastline.
Term
Erosional vs Depositional
Definition
West with no sediment, no beach vs East and the opposite
Term
See diagram for Coastline
Definition
See diagram for Coastline
Term
How are coral reef formed and from what?
Definition
shallow, warm water and sunlight
Term
What is a wetland? Salt marsh? Mangrove marsh?
Definition
saturated area. Grow everywhere and plants can resist salt water. No freezing temperatures.
Term
What's wrong with barrier islands?
Definition
Very dangerous because they can collapse
Term
What is geomorphology?
Definition
study of land forms and their changes
Term
What happens when geomorphic threshold is reached?
Definition
friction has been overcomed; water helps with this
Term
3 main parts of a slope.
Definition
Waxing (top), freeface, debri slope (bottom)
Term
What forces are constantly working on a slope?
Definition
Gravity, Normal Force, Friction
Term
What is weathering?
Definition
rocks break down
Term
What is the regolith? Bedrock?
Definition
rocky, soil mix. bottom, solid rock layer
Term
How does your geographic orientation affect weathering?
Definition
precipitation, wind, temperature
Term
How does vegetation both enhance and reduce weathering?
Definition
Trees breaks up rock, gives off acid, and holds the soil together.
Term
What is frost action?
Definition
water gets into a rock and freezes and expands; breaking the rock
Term
Process of exfoliatoin and the sheeting that is produced.
Definition
Exfoliation is the eroding of material that causes sheeting. Sheeting is when the rock breaks off.
Term
What is oxidation?
Definition
chemical weathering called rusting
Term
What is karst topography and what is needed?
Definition
lots of limestone and is only possible with the flow of water
Term
How do sinkholes form?
Definition
rock breaks down and leaves a hole
Term
What is mass movement?
Definition
movement down a slope
Term
Dripstones vs Stalactites vs Stalagmites
Definition
Dripstones are the slow dripping of water with minerals dissolved in it.
Stalactites are depositional features that grow from the ceiling.
Stalagmites grow my the cave floor.
Term
What are the 4 classes of mass movement?
Definition
Fall is the fastest, creep is the slowest, flow is saturated, and slide is everything moves at once.
Term
How have humans induced mass movement? Example.
Definition
Scarification; cut into land
Term
What is the difference between relief and topography?
Definition
vertical difference in elevation vs. just elevation
Term
What is a continental shield?
Definition
old, solid parts of the continental
Term
What is tension/compression/shear on plates?
Definition
Tension is stretching. Compression is squeezed. Shear is the twist of the plate.
Term
What is strain? What are folding and faulting plates?
Definition
Strain is how a rock responds to stress. Folding bends and faulting breaks.
Term
What is an anticline/syncline?
Definition
Anticline is the ridges in the folds.
Syncline is the troughs in the folds.
Term
What is a normal fault?
Definition
tension occurs
Term
What is a reverse fault?
Definition
compression occurs.
Term
What is a strike-slip fault?
Definition
when shear occurs
Term
What is the epicenter and focus of an earthquake?
Definition
Epicenter is the point at the surface.
Focus is the point in the plate.
Term
What is and how does the elastic rebound theory work?
Definition
2 sides of a fault are locked by friction and resist movement. Stress builds up until it breaks and causes an earthquake.
Term
3 ways volcanoes are formed?
Definition
subduction, hot spots, and sea floor spreading
Term
Efflusive eruption vs explosive eruption
Definition
gentle, slow flow of lava (shield volcano) vs a sudden, violent flow; subduction zone, mountains are small(composite volcano)
Term
What is a pedon? Polypedon?
Definition
Pedon is a vertical slice; poly is multiple
Term
What is a soil horizon? Important horizons?
Definition
Soil horizon is horizontal layers. Important horizons are the organic and rock layers.
Term
Soil properties: Color, Texture, Structure, Consistence, Porosity, Moisture, Chemistry, Acidity
Definition
Texture is the size of the particles. Structure is the organization of soil particles. Consistency is the stickiness. Porosity is how water flows through the soil.
Term
What is a loam?
Definition
sand, silk, clay
Term
What affects soil pH?
Definition
acid rain and vegetation
Term
What natural factors affect soil?
Definition
Vegetation, bacteria, insects
Term
How does topography affect soil?
Definition
mountain side vs flat plain
Term
How have people degraded soils?
Definition
plow and plant same crops over and over again
Term
What is soil Taxonomy?
Definition
how we classify soils
Term
Oxisols
Definition
tropical soils, lots of leaching
Term
Aridisols
Definition
desert soils that are dry and salty
Term
Ultisols
Definition
highly weathered forest soil in NC, degraded by tobacco
Term
Entisols
Definition
undeveloped soil, thin layer of sediments
Term
Andisols
Definition
volcanic soil, store lots of water
Term
Gelisols
Definition
cold-frozen soil. latest/newest soil, below freezing, takes a long time to develop
Term
What is leaching?
Definition
drain soil of nutrients
Term
What is salinization?
Definition
the amount of salt in the soil or adding/reducing salt in the soil
Term
Types of plants that grow in volcanic soils? Why?
Definition
sugar and pineapple because of lots of water
Term
How is an ecosystem defined? What is Ecology?
Definition
Ecosystem is the association of living things with their non-living environment.
Ecology is the study of the relationships between organisms and their environments.
Term
What is biogeography? What things affect it?
Definition
Biogeography is the study of the distribution of plants and animals.
Climates
Term
Biotic vs Abiotic components
Definition
living components vs non-living components. animals vs sun/weather
Term
What is a community and how is it different from an ecosystem?
Definition
Communities are formed by interactions among populations of living animals and plants. Interaction
Term
What is a habitat? Niche?
Definition
Habitat is a type of environment an organism has adapted to.
Niche is a function of a life form within a community
Term
Symbiotic vs. parasitic relationship?
Definition
two or more species exist together in an overlapping relationship vs where the host dies destroying the parasite's habitat
Term
Photosynthesis vs Respiration
Definition
process that forms water and sugar vs reverse of photosynthesis releasing CO2, water, and heat
Term
What are net primary production and biomass?
Definition
the amount of energy stored in ecosystem.
net dry weight of all organic material and its stored chemical energy
Term
What abiotic components affect ecosystem development?
Definition
Sunlight, precipitation, and temperature
Term
What is a life zone? How does altitude change plant type?
Definition
the zonation of plants with altitude.
Higher up you go the colder it gets.
Term
What is a biome?
Definition
geographic region mapped according to dominant vegetation and organisms
Term
4 primary biomes on earth?
Definition
Forest, grassland, tundra, and desert
Term
What is a limiting factor?
Definition
one physical or chemical abiotic component that most inhibits biotic operations, either lack or excess
Examples: lack of water and excess water
Term
What is the dead zone in the Gulf of Mexico?
Definition
lots of fertilizer, animal manure, and other waste products are dumped into the Gulf
Term
What is an anthrogenic effect?
Definition
man-made input into a system; not by nature
Term
Difference between a mobile/stationary/natural pollution source?
Definition
car/factory/volcano
Term
What is acid rain? What pH is needed?
Definition
human induced acid deposits into snow, rain, dust or gas. Needs pH lower than 5.6
Term
What effect does Carbon Monoxide, particulates, and ozone have on human health?
Definition
Carbon Monoxide reduces the ability of blood to carry oxygen. Particulates contribute to lung cancer and aggravates bronchitis and asthma. Ozone causes coughing, chest pain, shortness of breath; also nose, eye, and throat irritation.
Term
Primary greenhouse gas vs primary anthropogenic greenhouse gas
Definition
water vapour vs CO2
Term
What has global temperature and CO2 done in recent history?
Definition
global temperature gradually increased and CO2 sharply increased.
Term
Where is the ozone shield and what does it do?
Definition
Ozone shield filters ultraviolet rays, in the stratosphere, before it reaches the lower atmosphere
Term
How thick is the ozone layer?
Definition
3 mm thick but changes with season
Term
How does Chlorine act as a catalyst in the destruction of ozone?
Definition
doesn't use itself up in the break down of ozone; goes to the stratosphere and creates equilibrium in the oxygen/ozone reaction
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