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The majority of the debris found in the garbage patch is _______. a. large plastic bottles b. sewage c. trash from landfills d. small pieces of plastic Please select the best answer from the choices provided A B C D

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Which of the following does not represent an impact of recreational activity on springs? a. destruction of native vegetation b. wildlife disruption c. decreased soil erosion d. water pollution Please select the best answ...

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How is thermohaline circulation influenced by salinity and temperature? a. It is driven by density gradients, which are affected by salinity and temperature, with cold water and water with higher salt concentrations bein...

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How does pollution affect marine life? a. Pollution causes a decrease in phytoplankton populations and therefore a decrease in the occurrence of algal blooms. b. Pollution causes destruction of coral reefs, which are imp...

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Which of the following methods would help decrease marine pollution? a. government regulation of agriculture b. government regulation of industry c. reduction in chemical use d. all of the above Please select the best an...

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How has the removal of wetlands impacted rivers and streams? a. It has increased the rate of absorption, causing a decrease in water levels. b. It has decreased the rate of absorption, causing greater incidents of floodi...

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Where is oxygen content in a river or stream likely to be highest? a. the source b. the mouth c. the middle portion d. none of the above Please select the best answer from the choices provided A B C D

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Where does the water in streams and rivers originate? a. precipitation b. runoff c. ice and snowpacks d. all of the above Please select the best answer from the choices provided A B C D

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How does access to sunlight affect the biodiversity of a river ecosystem? a. Sediment is limited in areas with little access to sunlight. b. Plant and animal life is limited in areas with little access to sunlight. c. Al...

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