Environmental Science

  What is advection? 
 the movement of water through the atmosphere 
 What does BOD stand for? 
 biological oxygen demand 
 What percentage of water is used in the bathroom of a typical home? 
 How many gallons of water are used in the U.

S. each day? 

 40 billion gallons 
 What percentage of industrial water use is for cooling? 
 What are the 5 horizons in soil profiling? 
 1. O Horizon 2.

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A Horizon3. B Horizon4. C Horizon5. R Horizon 

 What type of soil has

  • no drainage
  • no air capacity
  • high water capacity
  • high nutrient capacity 

 What is loam? 
 a mixture of soil that is suitable for growing plants 
 At what precentage must ground cover be mainained at to prevent the detatchment of soil particles?
 What number on the pH scale is both neutral and sweet?
 What product is most commonly recycled?
 How many tons of trash are produced yearly in the US?
 210 million tons
 What is the difference between a dump and a landfill? 
 A dump is a hole in the ground that is filled with trashA landfill is a planned structure built into the ground that isolates the trash from the environment
 What is the percentage of trash that is burned in the US?
 List two methods used to monitor ground water around a landfill.

 1. test the water temperature2. test the water pH level
 List two advantages and two disadvantages to wind power
advantages:1. wind is free2. the wind turbine energy doesn’t cause pollution;disadvantages:1. wind strength is not consistant (un-reliable)2. wind turbines are noisy
;What are three factors that affect the power output of a wind turbine?
;1. wind speed2.

blade diameter3. height of the wind turbine

;What are groups of large turbines called?
;wind farms or wind plants
;What area of the US is most ideal for wind power use?
;coastal areas
;Name three government incentives to increase the use of wind power.
;1. production tax credit2. renewable energy credits3.

installation tax credits

;What is the ‘capacity factor’?
;the percentage of time a power plant is active
;How much does geothermal energy production cost in the US per year?
;$1.5 billioin
;What is the temperature of the center of the earth?
;6,000 degrees Celsius
;How do some countries use geothermal energy?
;for cooking and heating
;Where does the name ‘geothermal’ come from?
;two Greek words: ;geo; (earth) and ;thermal; (heat)
;List two methods of soil conservation
;1. soil erosion control2. nutrient retention
;What is bioenergy and how can it be used?
;bionenergy is the use of organic material to produce energy such as heat, fuel, and electricity
;What are three types of biomass?
;1. municipal, animal, and industrial waste2. soybeans, corn, sugar cane3.

wood chips ; saw dust

;What are two advantages of using bioenergy?
;1. bioenergy does not contribute to global warming2. it reduces, reuses, and recylces biomass (environmentally friendly)
;Up to what percentage of coal-energy can be replaced by bioenergy?