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Water cycle: Quiz

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Question 1: [15] The dead zone at the outlet of the Mississippi River is a consequence of nitrates from fertilizer being carried off agricultural fields and funnelled down the river system to the ________.
Atlantic OceanCaribbean SeaGulf of MexicoMediterranean Sea

Question 2: Cultural ________ of lakes is primarily due to phosphorus, applied in excess to agricultural fields in fertilizers, and then transported overland and down rivers.
Marine pollutionEutrophicationSurface runoffWater pollution

Question 3: Will the wet get wetter and the dry drier? - Climate research summary from ________ Geophysical Fluid Dynamics Laboratory including text, graphics and animations
National Oceanic and Atmospheric AdministrationNational Agricultural Statistics ServiceUnited States Environmental Protection AgencyNational Weather Service

Question 4: ________ is water transpired from plants and evaporated from the soil.
EvapotranspirationEvaporationGroundwater rechargePrecipitation (meteorology)

Question 5: An alternative method to estimate residence times, which is gaining in popularity for dating groundwater, is the use of ________ techniques.
TechnetiumStable nuclideIsotopeAtom

Question 6: [17] Such a process over geologic time causes water-rich planets such as the Earth to evolve into planets such as ________ over billions of years.
MarsJupiterVenusMercury (planet)

Question 7: Over geologic time, water-rich planets such as the Earth lose gases such as ________ over time, which can lead to run away greenhouse effects which in turn accelerate Hydrogen loss, and by association water loss, from a planet's atmosphere.
HeliumHydrogenNitrogenOxygen

Question 8: Water evaporates as water vapor into the ________.
History of the EarthEarthAtmosphere of EarthNature

Question 9: The more common method relies on the principle of ________ and assumes the amount of water in a given reservoir is roughly constant.
Conservation of massSpecial relativityMass–energy equivalenceConservation of energy

Question 10: The drying is projected to be strongest near the poleward margins of the subtropics (for example, the Mediterranean Basin, South Africa, southern ________, and the Southwestern United States).
BarbadosCanadaUnited KingdomAustralia







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