Science Ch. 11
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What is true about surface water? | It makes up less than 1 percent of all water on Earth.
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| Most of Earth's fresh water is______ | solidified at the North and South Poles
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| Eath's surface water is found in | lakes, streams and rivers
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| What is the relasionship between groundwater and surface water? | Surface water percolates through the soil to form groundwater.
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| What is the purpose of adding chlorine to water during the water treatment process? | to kill bacteria that have accumulated,as well as prevent future bacterial growth.
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| How is fresh water used in industry? | to generate power, in the disposal of waste products and in manufacturing processes.
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| Many areas of the world without adequate water ave become habitable because | water management projects have diverted water to the area.
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| Which of the following is one way that a person could conserve water? | use a low-flow shower head and take short showers.
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| Which of the following represents nonpoint-source pollution? | runoff from agricultural feedlots.
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| Parasitic worms would be lassified as which type of water pollutant? | pathogen
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| Polluted groundwater is difficult to clean because | it's deep in the ground and dispersed through large areas of rock, pollutants cling to the materials that make up the aquifer and contaminate the clean water and the recycling process of groundwater can take hundreds or thousands of years.
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| Most if the pollutants in the ocean come from | activities on land.
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| The 1990 Oil Pollution Act requires that all | tankers in the US waterway be double hulled by the year 2015
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| The largest watershed in the US is the | Mississippi River
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| When neighborhood residents noticed a large number of dead fisg in a local creek, they traced the problem to a nearby gas station. It turned out that a tank of gasoline developed a leak, this is an example of: | point-source pollution
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| Most large cities get water for households and industries from | rivers and lakes
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| What is an inexpensive solution to providing everyone with more fresh water to use? | water conservation
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| Some communities have banned communities with high level of phosphates because | because excessive phosphates in lakes may begin a process that causes fish to suffocate and die.
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| Which of the following may occur as a result of plastic trash accumulating in the ocean? | turtles mistake clear plastic bags for jellyfish, ingest them and die of intestinal blokage, sea-gulls are strangled by by plastic six pack rings and sea mamals, such as seals become tangled in clear plastic fishing lines and drown.
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| Which of the following is most likely to cause conflict between two countries that share a river? | the "upstream" country builds a series of new dams
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| Which of the following is NOT a true statement about the social and enviormental impact of dams? | they are built to resolve disputes between neighboring countries.
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| A true statement about aquifers is that | they are hard to purify because the water collects in sand and rocks
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| An effective approach to preventing future shortages of usable water should focus on | emphasizing the additive effect of individual attempts to conserve water, reducing the pollution of exiasting water sources by education and enforcement and developing and refining new ways to produce fresh water such as desalination.
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| The effects of water pollution on ecosystems | can magnify over time within food chains
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| A common feature of thermal pollution and artificial eutrophicatior is that they both | decrease the amount of oxygen dissolved in water.
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
witherm