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EHST 2110 Exam 4 Iverson East Carolina University- with Complete Solutions
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EHST 2110 Exam 4 Iverson East Carolina University- with Complete SolutionsEHST 2110 Exam 4 Iverson East Carolina University- with Complete SolutionsEHST 2110 Exam 4 Iverson East Carolina University- with Complete SolutionsEHST 2110 Exam 4 Iverson East Carolina University- with Complete Solutions 7...

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  • August 13, 2024
  • 7
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • ehst 2110 exam 4 iverson east carolina university
  • ehst 2110 exam 4 iverson east carolina university
  • 71 answer what percent of the earths surfac

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EHST 2110 Exam 4 Iverson East Carolina
University- with Complete Solutions
71% - ANSWER - What percent of the earth's surface is covered by water?


97% - ANSWER - How much of Earth's water is salt water?


3% - ANSWER - How much of Earth's water is freshwater?


65-70% - ANSWER - How much of a human's body weight is water?


1 kg of food and 2.5 kg of water - ANSWER - A typical adult requires:


1.5 Billion - ANSWER - How many people lack access to adequate supplies of safe water in
developing countries?


California - ANSWER - What state uses the most water?


40% - ANSWER - What percentage of the world's population live in water stressed areas?


20 Billion - ANSWER - Earth's 1% of fresh water can adequately satisfy how many people?


30 inches - ANSWER - What is the U.S's average annual rainfall?


Rainfall - ANSWER - Meteorological droughts are based on:


soil moisture - ANSWER - Agricultural droughts are based on:

, Waste treatment facilities and septic systems - ANSWER - Degradation of groundwater supplies
often occurs from:


Agriculture - ANSWER - Largest user and waster of water


water conservation - ANSWER - reducing overall use, reducing waste, and recycling water for
other uses


stream flow or ground water levels - ANSWER - Hydrologic droughts are based on:


96% - ANSWER - How much of Earth's freshwater is ground water?


25% - ANSWER - How much of the U.S.'s water supply s ground water?


Soil filtration - ANSWER - Groundwater is usually cleaner and purer than most surface waters
due to:


groundwater depletion - ANSWER - persistent lowering of the water table


Ogallala - ANSWER - world's largest underground water reserve


33% - ANSWER - Ogallala supplies nearly _________ of all water for irrigation in the US


Salt water intrusion - ANSWER - migration of salt water from the ocean to pumping wells due to
excessive water level drops in freshwater aquifers


confining bed - ANSWER - largely impermeable layers that hinder water's movement (ex. clay)


Aquifer - ANSWER - permeable rock or sediments that transmit water easily (ex. sand or gravel)


Black Creek, PeeDee, and Beaufort - ANSWER - Name three of NC's Hydrogeologic Units

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