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| 12583157322 | Most of Earth's liquid fresh water is found ________. | underground | 0 | |
| 12583161574 | approximately _____% of Earth's water is found in ice caps and glaciers. | 2 | 1 | |
| 12583180523 | What percentage of earths fresh water is found in oceans? | 0 | 2 | |
| 12583194232 | A porous, spongelike layer of rock, sand, or gravel that is capable of holding water | aquifer | 3 | |
| 12583200163 | the worlds largest known aquifer | Ogallala Aquifer | 4 | |
| 12583207776 | Any obstruction placed in a river or stream to block flow | dam | 5 | |
| 12583217462 | A long, raised mound of earth used to control flooding along a river | levee | 6 | |
| 12583231107 | a measure of the density of suspended particles (lack of clarity) in a water sample | turbidity | 7 | |
| 12583246031 | Aerobic bacteria break down organic materials during this stage of waste water treatment | secondary treatment | 8 | |
| 12583253472 | water leaving a waste water treatment plant | effluent | 9 | |
| 12583261670 | the worlds largest body of fresh water | Caspian sea | 10 | |
| 12583280082 | one-fifth of earths total freshwater supply is in | groundwater | 11 | |
| 12583288273 | humans use more fresh water for ______ than for any other purpose | agricultural irrigation | 12 | |
| 12583309712 | why was the irrigation of soviet cotton farming operations a problem? | it drained the aral sea and increased the salt content of soils | 13 | |
| 12583709052 | sinkholes can result from_______ | overconsumption of water from aquifers | 14 | |
| 12583719319 | which of the following will contribute to water conservation? | watering lawns at night, using low-flow faucets, and landscaping with native plants | 15 | |
| 12583737604 | gray water (water from laundry, showers, baths...not toilets) can be used for | irrigation | 16 | |
| 12583746843 | which of the following is one of the major pollutants of groundwater? | agricultural chemicals | 17 | |
| 12583771733 | the fish in the lake at the local park are dying, and a professor from the local college come to investigate. first she measures the levels of dissolved oxygen because she wants to check for | hypoxia | 18 | |
| 12583784997 | a watershed is | areas of land that drains to a lake or river | 19 | |
| 12583800675 | "Blue-baby" syndrome id a consequence of excess ____ in the water supply | nitrates | 20 | |
| 12583811605 | a key characteristic of aquatic dead zone is | a low concentration of oxygen | 21 | |
| 12583822799 | why is grain production in the great plains considered largely unsustainable? | the Ogallala aquifer is being depleted for irrigation water | 22 | |
| 12583835482 | Overpumping groundwater in coastal areas can cause ________ to move into aquifers, making the water undrinkable. | saltwater | 23 | |
| 12583846875 | pros and cons of dams | PROS: prevents floodry, make electricity, lake for fish CONS: Dec. river habitat, silt doesn't go to mouth of river. | 24 | |
| 12583878589 | Overfishing. what is bycatch? | fish caught and killed that are not wanted/ eaten | 25 | |
| 12583903862 | what did the Canadian do in 1992 in regards to cod fishing? | stopped it | 26 | |
| 12583908720 | Bottom trawling | big net on bottom | 27 | |
| 12583914240 | long line | long line with 1000 of hooks | 28 | |
| 12583926599 | what can be done to help restore fish stocks in the worlds oceans? | Buy sustainable fish, Buy smaller fish, Marine preserves, monitor and limit fisheries | 29 | |
| 12583954788 | why is fish farming (aquaculture) not a perfect solution to the overfishing problem? | have to feed fish to fish... not efficient also.... diseases can spread | 30 | |
| 12583966196 | ocean acidification is caused by | extra CO2 in air dissolved into the water | 31 | |
| 12583984285 | what is coral? | a symbiotic (mutualism) between animal (polup) and algae | 32 | |
| 12584011378 | coral bleaching. cause? what happens when it happens? | cause: hot water what happens when it happens: algae is removed....and coral cant make food | 33 | |
| 12584030946 | estuaries salt marshes and mangroves | fish and salt mix trees along coast Important bc: a lot of biodiversity filter pollutants, stabilize shorelines coast from storms | 34 | |
| 12584064847 | Kelp forests | kill sea urchins that eat | 35 | |
| 12584072609 | sea otters | keystone species | 36 | |
| 12584081743 | exxon valdez, deepwater horizon are examples of | oil spills | 37 |
