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IB ESS Unit 4 questions with 100% correct answers

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IB ESS Unit 4 questions with 100% correct answers

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  • October 7, 2024
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BravelRadon
IB ESS Unit 4

Water Budget - correct answer ✔✔A quantitative estimate of the amounts of water in storages and
flows of the water cycle



Main problem with the water budget - correct answer ✔✔There are varied turn over times between
systems, so it is hard to track the distribution.



Water Cycle Transfers - correct answer ✔✔Flooding

Runoff

Infiltration



Water Cycle Transformations - correct answer ✔✔Evapotranspiration - Liquid to water vapor

Condensation - Vapor to liquid

Freezing - liquid into solid



Water Cycle Storages - correct answer ✔✔Oceans

Soil

Lakes

Glaciers



Human impacts on water cycle - correct answer ✔✔Withdrawals for domestic use

Discharging - adding pollutants

Creating canals



Aral sea - correct answer ✔✔intense irrigation has stopped river flow and lowered the sea level by 90%



Is water a renewable or nonreturnable resource? - correct answer ✔✔Depends on the environment

, Turnover times are so varied, it depends on the time it takes to enter/leave a system



ENSO - correct answer ✔✔El Nino Southern Osculation

weakens trade winds -> water flows back to the east -> no more upwellings ( bad for fisheries ) ->
Rainforests are now in a drought and east coast is flooding

Human Impact - Decreased fishing production to due lack of upwelling



Ocean currents - correct answer ✔✔Run from the poles to the equator

Surface currents -> moved by the winds

Deepwater currents -> Thermohaline currents (oceanic conveyer belt)

Gulf Stream



Gulf Stream - correct answer ✔✔Raises the temperature of water causing more accurate weather
predictions

Pollutants and hunting affect the contents of the stream



Freshwater Uses - correct answer ✔✔Agriculture, hydration, hygiene, hydraulic energy, provides
transportations of materials on boats



Freshwater Issues - correct answer ✔✔Freshwater can become contaminated and unusable (ex: from
pollution)

Climate change can disrupt rainfall patterns

Dissolved minerals remain at the top of soil and cause salinization

Industry and electric plants release warm water into rivers and contains less oxygen, causing fish having
a lack of oxygen

Irrigation

Salinization

Thermopollution



Thermopollution - correct answer ✔✔harm to lakes and rivers resulting from the release of excessive
waste heat into them

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