exam 3 study guide Flashcards

(67 cards)

1
Q

What is the definition of geology? What are the three different zones of earth?

A

Study of dynamic processes taking place on the earth’s surface and in its interior
Three major concentric zones of the earth
Core
Hot minerals
Mantle
Less dense region, magma
Crust
Complex mineralogical composition, iron, calcium, aluminum, on the land
Continental crust
Oceanic crust = 71% of crust

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2
Q

Know definitions of mineral and rock.

A

Mineral
Naturally occurring chemical element or inorganic compound that exists as a crystalline solid
Rocks
brandt, limestone sandstone
We mine for gold and salt

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3
Q

Know the different types of rock
and how related to the rock cycle

A

Rock cycle
Named by the way in which they form
Sedimentary rock
Made of sediments
Formed thru transportation of water, wind, gravidity, accumulate in layers (sandstone, limestone shale)
Tiny particles of weathered and eroded types of rocks deposited and accumulate in layer
Metamorphic rock
Existing rock subjected to high temperatures, pressures, fluids, or a combination
Igneous rock
Forms under intense heat and pressure then cools

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4
Q

What are examples of geological activity related to tectonic plates?

A

Convergent
Plates moving toward each other, collide
Volcano, mountain ranges
Divergent
Move away
Transform plate boundary
Move in opposite directions BUT PARALLEL

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5
Q

What is the difference between a high grade and low grade ore?

A

Ore
Deposit in earth’s crust with one or more valuable minerals
Contrians profitable concentration of a minera
High grade or low grade
High grade ore more sustainable to mine

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6
Q

What are general trends we see with production and reserves for rare earth minerals?

A

Rare earth minerals
Produce lots of waste
China dominates in processing

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7
Q

What are the different mining techniques we discussed?

A

Surface and stip mining
Removes shallow deposits
Extracting deposits in horizontal beds close to the earths surface
Open pit mining
Dig large pits to remove ore
Mountaintop removal
Explosives to remove top of mountain to expose underground area for access
Environmental probs of mountaintop removal
U pollute water bodies
More erosion
Risk of flooding
Subsurface mining
Underground shafts elevators tunnels to get to mineral

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8
Q

What are some environmental and human health issues we discussed with mining?

A

Human health effects - resource extraction - mining
Ore extracted by mining
Ore mineral
Tailings is the waste polluted water slurry
Chemicals in here
Could be leftover sediment
Smelting
Roast ores heat ores
Heat and chemicals
Result
Air pollution
Water pollution
Human health effects
Dangerous for miners- can develop black lung

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9
Q

details on the gold mining case study in the Ivory Coast that we discussed in lecture.

A

Using toxic mercury to aggregate the gold
And it goes back into the soil via waste

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10
Q

biomining

A

Using living organisms to mine particular minerals of interest
Microorganisms able to clean salt water

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11
Q

Understand the dynamics of volcanoes, earthquakes, tsunamis, and glaciers discussed in lecture. Know corresponding terms and any specific locations discussed.

A

Volcanoes
Release molten rock from the earth’s interior
Magma rising to earth’s surface thru a fissure in earth’s surface
Eruption: release of hot ash into the air
Mt vesuvius destroy pompeii
Earthquake
Breakage and shifting of rocks
Occurs at a fault
Seismic waves
Vibrations in the crust
Focus
Origin of where earthquake occurs
Magnitude of earthquake is the severity
Haiti
Experienced a 7.2 magnitude
earthquake
Richter scale
It measures magnitude of the earthquake (amplitude of wave)
Largest recorded: 9.5 in chile, 1960

Earthquakes on the ocean floor
Cause tsunamis
Series of huge waves generated when ocean floor suddenly rised or drops
December 2004-indian ocean tsunami
Magnitude 9.2
230,0000+ lost lives
Japan
Nuclear radiation from it
Glaciers
Sheets of icermed from snow pack
Most occur on land but can extend out to sea
Climate change recedes them
Distinct landforms
Mounded hills: moraines, drumlines
Bodies of water: kettle lakes

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12
Q

Know the defining
features of the troposphere and stratosphere.

A

Atmosphere
Composition of gases
78% nitrogen and 21% oxygen
Innermost layers of the atmosphere
Troposphere
Stratosphere

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13
Q

What are greenhouse gases

A

CO2, methane, nitrous oxide, water vapor
Can trap heat in the atmosphere - like a blanket
They are natural, we need them to survive

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14
Q

Urban heat island effect

A

Urban heat island effect- a microclimate
Urbanized areas that experience higher temps than outlying areas
Albedo effect
How much sunlight is reflected from earth’s surface, then held onto. Light surfaces reflect more than darker surfaces

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15
Q

What are the different methods scientists use to understand climate and climate change?

A

Benefits of tree planting
Stormwater retention
Provide shade
Thermoregulation, evapotranspiration
aesthetic
Not absorbing heat thru black top

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16
Q

What are the effects of climate change?

A

Climate change effects
Global warming
Sea ice reduction
Dying polar bears
See temps rise
Melting glaciers

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17
Q

How do we know recent change is caused by humans?

A

IPCC
Intergovernmental panel on climate change
Scientists + gov representatives to review causes effects and data surrounding climate change
Every 6-7 years or so
Aim to limit going 1.5 degrees above the pre industrial temperature
Temperature over time (form pre industrial) to keep it under

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18
Q

What are features of the Paris Agreement?

A

International climate change agreement each country expected to lower GHG emissions with the overall goal of limiting the earth’s average temp increaser to below 2 degrees celsius - pre industrial level
1.5 degrees → decided it is better not to go above

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19
Q

What are solutions to climate change that we went over in lecture?

Air Pollution

A

Solutions to climate change
Clean energy tax credits
EPA regulations on power plants
Auto industry regulations-switching to EV vehicles

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20
Q

What are examples of natural sources vs. human sources of air pollution?

A

Natural sources
Windblown dust, wildfire residue, volcanic eruptions
Human sources
Power Plants
Industrial facilities
Motor vehicles

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21
Q

What does the Clean Air Act do? For are the six major pollutants covered in the Clean Air Act?

A

Clean air act
Natural ambient air quality stickers
6 criteria pollutants
Transportation powerplants- main emitters of pollutants
PM particulate matter
Sulfur dioxide
Carbon monoxide
Nitrogen dioxide
Ozone in the stratosphere (troposphere its a pollutant
Primary pollutant
Released directly from the source into the air in a harmful form
Carbon, sulfur

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22
Q

What is the difference between primary and secondary pollutants?
Examples?

A

Primary pollutant
Released directly from the source into the air in a harmful form
Carbon, sulfur
Secondary pollutant
Converted to a hazardous form after they enter the air or are formed by chemical reactions as components of the air mix and interact
Ozone
Needs sunlight to form that reaction

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23
Q

Know some features that we went over in lecture about each of the air pollutants

discussed.

A

Major outdoor air pollutants
Sulfur dioxide and sulfuric acid
Harmful pollutants
Colorless corrosive gas
Coal and oil
Ore go thru smelting that can release sulfur dioxide into the atmosphere
Water vapor and sulfuric acid → breaking down chlorophyll in leaf acid rain, statues disintegrating

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24
Q

What trends do we see with acid rain across the U.S.?

A

Nitrogen oxides
Highly reactive gasses that forms with nitrogen heated air to a particular temperature in the presence of oxygen
Can react w water= nitric acid
Nitric acid and sulfuric relate to acid rain
Acid rain
Rainfall in 1986 more acidic bc more sulfur dioxide issues + nitrogen oxide pollution
Seen in forests at high altitudes dying off

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25
What are examples of indoor air pollutants?
Indoor pollution Wind charcoal fires increase the amount of pollution indoors Cigarette smoke, chemicals in building materials
26
Effects of pollution
Asthma Chronic bronchitis Muscle spasms constricting airways Emphysema When permanently restricted it is emphysema
27
What are some solutions to air pollution?
What can we do Dilution is the pollution? No Converting to more renewable energy Air filter, remove particulates in smoke stacks (industry) China had rlly polluted air Beijing is the smog capital of the world Required industry to bring down pollution Clean air legislation Pollution going down From emission controls Cap and trade with sulfur dioxide - went down
28
Clean air legislation
Pollution going down From emission controls Cap and trade with sulfur dioxide - went down Oceans 97% of all water on planet Freshwater 3% Most trapped in ice/glaciers
29
hydrologic cycle
Evaporations liquid water to gas Precipitation turns liquid water into gas rain, hail, returns to earths surface Infiltration and surface runoff Water falling from the sky Seeping into the ground stored as ground water If it does not go into the ground it becomes runoff, back to the ocean Used for irrigation→ we use alot of ground water More intense storms Bc the air is warmer and holding more moisture leading to more storms and significant storms
30
rain shadow effect
Prevailing winds traveling up the mountain picking up moisture from the ocean Cooling letting moisture go, coming down other side of mountain starts to fall and warm up Air conditions on leeward side Windward side is more lush bc more rainfall Ex. death valley CA
31
What are wetlands and what are ecosystem services they provide?
Wetlands The composition of the soil permanently or seasonally saturated and specific plants will determine if area is a wetland Ecosystem services Prevent erosion Storing water Prevent flooding Biodiversity Birding Canoeing Kayaking Re supply groundwater Vegetation can filter pollutants breakdown toxic waste
32
zone of aeration, ii) zone of saturation, iii) water table, iv) aquifer
Zone of aeration Where plants get moisture from Zone of saturation Where the ground water is Water table Distinguished between the zone of aeration and saturation Aquifer Porous layers of sand, gravel, rock below the water table Wetlands help recharge the aquifer Reservoirs for ground water
33
What is the problem with groundwater?
Pulling groundwater causes sinking Rely on food production happening using too much water
34
why is the Great Salt Lake drying up?
Ogallala aquifer Irrigation pumps are pumping out water Over watering is bad Using additional resources for over watering is bad Cant naturally recharge if water is pumped to fast Ones near the shore can have saltwater infiltrate making it unusable Utah's environmental nuclear bomb Lake is drying from drought,snowcap, population using too much water Water evaporation Effects of lake drying Impact ook with high risk disease, when water exposes sediment of the lake bed which can blow metals in the atmosphere respiratory issues, lung cancers, more pollutants
35
Water out west
drought
36
How are we using water?
Agriculture Uses a lot of water - largest use of water Chocolate needs a high processing of water Beef also for water use kg of beef takes abt 15k meters of water
37
What are some methods of water conservation?
Water conservation efforts What can you find Cloud seeding Planes go up and shoot flares into clouds that have silver iodide particles causes rainfall from these clouds -geoengineering, stop warming of the planet Desalination plants Taking out the salt from water in the ocean, converting it into freshwater =, suitable for human consump. Irrigation Desalination drawbacks Large capital cost Use a lot of energy to run Recycled Able to recycle waste water and clean it up for different uses Sponge city Make greater use of low impact nature based solutions, to help in storing, distributing water in areas, wetland in the middle of the city, more permeable asphalt to help water absorption, green vegetation
38
What is water pollution? What is the difference between point source and nonpoint source pollution?
Any physical, biological or chemical change in water quality that adversely affects living organisms or makes water unsuitable for desired uses Point source pollution Specific place of discharge, makes it easy to monitor, track and regulate Drain pipes, sewers, treatment plants, ditches, coal mines, oil wells, locations easy to identify Non point source More scattered, harder to identify where it is coming from Farms - coming from runoff, variety of farms Runoff from lawns, gardens, golf courses, using herbicide or fertilizer
39
What are some different types of water pollutants?
Viruses, parasites, typhoid, cholleria→ make ppl sick From untreated water- human animal waste Less dev countries do not have treatment plants to treat the water 80% of sickness in low income countries is from waterborne infectious agents
40
Dead zone
Gulf of mexico, gulf of america Fertilizer runoff The mississippi watershed collects the runoff emptied out into the gulf
41
What did the Clean Water Act do? What is “How’s My Waterway?” from the EPA?
Clean water act National pollution discharge elimination system (permits) Upgrade municipal sewage treatment plants States establish total maximum daily loads (TMDL) Led to significant improvement in surface water quality * qater quality information is displayed on 3 scales in How's My Waterway; community, state and national.
42
safe drinking water act
Standards for drinking water Pfas→ polyfluoroalkyl substance - manufactured chemicals Drinking water regulation Non stick pans etc Don't break down- linked to health issues like cancer, hormone disruption, reproductive issues, thyroid dev, abnormal dev, liver
43
Bottled water v municipal water
City tap is actually tested more Half the bottled water is repurposed municipal water Microplastics in there More plastic in general Some residences have to rely on bottled water
44
Upper susquehanna coalition
Prevent pollution in chesapeake bay Bc the sus river is part of the chesapeake bay They work w farmers to lessen runoff Plant trees - establish river buffers, more vegetation to capture excess nutrients running off farmers field
45
Municipal wastewater treatment primary and secondary
Primary treatment - physically separate large solid from waste Screening - remove large solid Settlement tank- remove remaining solid Secondary - use microorganisms to decompose it Bacteria- in beds or tanks purify solids Water
46
What are some other methods to water treatment
Large infrastructure to treat water Low tech solutions Set up constructive wetlands Using duppy remove organic nutrients from water - used as animal feed
47
trends we see in the U.S. with energy usage Consumption and production?
Smaller treatment uses UV light to clean up water - for countries without large infrastructure Safe drinking water to ghana india, philippines siberia UNITED STATES: Is a net exporter of energy Liquified natural gas transported to europe
48
New york state climate leadership and community protection act
100% zero emission electricity by 2040 (renewables and nuclear) Nuclear energy is a non renewable but does not emit any direct gas into atmosphere Nuclear is 26% renewable is 75%
49
efficient energy
Key thing in importance of not wasting energy Making sure buildings and homes are energy efficient as they can be New insolation, heat pumps, multiple pane windows Passive house- windows are well positioned to daylight so you don't have to turn on light in your house
50
solar energy
Photovoltaic PV cells Convert solar energy to electric energy Hooked up to battery or connected to the grid Community solar Community shares solar rays connected to utility
51
Solar grazing or agricole triacs
Mutualistic relationship btwn sheep farmers and solar panel companies Farmers bring sheep to graze these areas bc cant have grass get too high Solar panels provide shade for the sheep Then the company does not have to worry abt maintaining the field
52
wind energy
Kinetic energy captured by wind turbines Offshore wind farms Ppl think it is and eyesore NIMBY Not in my backyard I dont want something so close to me that i can hear or see What about birds Birds getting killed by turbines To prevent Avoid migration terminals Painting them Stopping them let birds go
53
hydropower
Producing electricity form flowing water Dams controlling the flow of water, spinning the turbine generating electricity No carbon emissions The good and the bad Construction of the dams - destroys habitat that was there before Controlling the flow of water can impact the fish like salmon need to swim upstream to spawn So they make fish ladder to help fish move easily People can be displaced Expensive to build / construct Need lots of maintenance and repair Most dams are not built for electricity generation
54
Hydraulic fracturing - hydrofracking
Used to acquire natural gas Hydrofracking Natural gas resource hard to reach places Water contamination in groundwater Destabilizing the earth's surface- earthquakes Lots of waste
55
hydropower
Producing electricity form flowing water Dams controlling the flow of water, spinning the turbine generating electricity No carbon emissions The good and the bad Construction of the dams - destroys habitat that was there before Controlling the flow of water can impact the fish like salmon need to swim upstream to spawn So they make fish ladder to help fish move easily People can be displaced Expensive to build / construct Need lots of maintenance and repair Most dams are not built for electricity generation Climate change Bringing more rainfall could be good Areas can experience drought like conditions bad for hydropower
56
biomass energy
Plant materials, agricultural waste, could be burned or used for fuel See in solid or liquid form 40% of corn produced in the united states used to make ethanol Advantage /Concern Using shrubs or other things for biomass production Put some Co2 into the atmosphere but not as much Rely less on fossil fuels if using more biomass Corn concern Alot of corn thats grown in this country for ethanol production are monoculture require lots of inputs on large pieces of land that corn is planted every year
57
coal
Solid fossil fuel formed from remains of land plants Transported by railroad Conventional coal is plentiful Low cost Main issue w coal Its dirty Contributes to air pollution- mercury, arsenic, lead Environmental damage to extract it Dangerous for workers Black lung disease
58
top coal producing states
Wyoming West virginia Pennsylvania But we as a country moved away from coal production - more investment with wind, solar, etc
59
Oil
Refining of crude oil Offshore drilling - lots of oil comes from here From marine algae and plankton 2018 BP oil spill in the gulf of mexico Canadian oil sands - get lots of oil from here
60
Major pipelines
Water contaminates Accidents Methane pollution
61
Nuclear power
Technically considered a nonrenewable resource Uranium Controlled nuclear fission reaction in a reactor Nuclear fission- the splitting apart of nuclei that release energy each decision releases neutrons which causes more chain reactions Fuel rods (put in the ore) and control rods (slowing down) Water used as coolant
62
Nuclear energy compared to fossil fuel
Advantages No emissions Provides ton of energy Disadvantages Using too much energy Major disaster can occur Really expensive Proximity Limited amount - extraction Radioactive Waste
63
Energy
Used for tech Companies interested in nuclear power and invest money to dev it Majority of americans support nuclear power
64
“The Promise of Natural Gas”? podcast
Volatile organic compound mainly methane accumulate on the top of oil / coal deposits Some say it is more environmentally friendly than coal- bc when burned does not produce as much co2 But still produces greenhouse gas, non renewable resource, is a fossil fuel Ecosystems being destroyed Light pollution Germany invested in clean energy but built all these terminals for natural gas
65
troposphere
supports life on earth closest to the surface
66
stratosphere
Contains our ozone layer, protective layer that helps filter out harmful UV radiation
67
geothermal
Geothermal energy Heat stored in soil, underground ricks, and fluids in the earth's mantle Geothermal heat pump system Uses temperature difference between the earth's surface and underground Fluid carried through a closed loop