Environmental Science Test
List the four common types of water pollution
1.) nutrient pollution 2.) surface water pollution 3.) Oxygen depleting pollution 4.) groundwater pollution
Which 2 of the following represent the most common uses of water here in the United States?
Agriculture & Household use - cooking, toilets, showers
Name 2 of the sources of drinking water for the Detroit water system.
Detroit river and lake huron
Wetlands function very much like a:
Drinking water treatment plant
Which of the following plant tissues are we "tapping" into in order to collect the maple sap?
Epidermal
Of the following, which is the best example of a point-source of water pollution?
Factory wastewater discharge
Dead zones form as a result of :
High levels of nutrients collecting in the body of water.
In a river ecosystem, dissolved oxygen concentrations drop quickly downstream from a point-source input of organic matter into the river. This effect is due to :
Increasing bacterial activity as organic matter decays
Waste from which of the following is an example of nonpoint source pollution?
Runoff from agricultural fields
The first step in both drinking water treatment and wastewater treatment is
Screening/filtering out large substances
The first step in both drinking water treatment and wastewater treatment is:
Screening/filtering out large substances
Choose the 3 common sources of drinking water for municipal/city water supplies.
Surface water such as lakes and rivers, Groundwater / underground aquifers, Desalination of sea water
In a river ecosystem, dissolved oxygen concentrations drop quickly downstream from a point-source input of organic matter into the river. This effect is due to:
The ability of warmer water to dissolve heavy metals.
Which of the following is a point source of water pollution?
The green ooze from chrome plating plant in Madison Heights
What is the primary reason that so much of the water is polluted? Why do governments not take steps to fix these situations?
The main reason for a massive increase in water pollutants can be caused due to a massive amount of waste being added to the water system. This can include both industrial waste, trash, and human feces. Government tend not to try an fix the problem because it is expensive.
It is estimated that about 1 billion people world-wide do not have access to clean drinking water.
True
The sugar that is in the maple sap / maple syrup was produced by, photosynthesis last summer
True
Which of the following is NOT a common method for disinfecting drinking water?
UV light
Which of the following is a non-point source of water pollution?
a logged forest
Throughout the world, the most water is used for
agriculture
The Gulf of Mexico's "Dead Zone" is caused by high levels of ________ in the Mississippi River
algae
What is by far the leading cause of water pollution?
factories/industrial
Bacteria need to be added during the treatment of wastewater in order to decompose organic wastes such as feces and food wastes.
false
Which of the following is not a common source of drinking water?
glaciers
Water in the spaces between soil, rock, and gravel is called what
groundwater
In the sewage treatment process, the purpose of chlorination involves ____.
killing bacteria and other pathogens
Which of the following is an effective alternative to chlorine for disinfecting wastewater in a municipal treatment plant?
phosphates
Wetlands such as swamps and tidal flats are valuable for
recharging groundwater supplies. animal habitat chemical cycling of carbon, nitrogen, and sulfur. their ability to absorb chemicals and heavy metals.
One method of desalination uses high pressure to force saltwater through a membrane filter. This method is called
reverse osmosis
A body of water can be depleted of its oxygen by ____.
sediments and suspended matter
The algal blooms found in Lake Erie are primarily caused by :
untreated sewage from cities.
Oxygen sag curves occur when
bacteria break down biodegradable wastes
One class of pollutants that can cause excessive growth of algae is
oxygen-demanding wastes.