Which of the following human activities do not require water?a.agricultureb.household choresc.industryd.none of the above
Which of the following best explains why humans need constant supplies of fresh water?a.Humans need a constant supply of water to provide them with essential vitamins.b.Humans need a constant supply of water to maintain proper hygiene.c.Constant supplies of freshwater are needed because body water is continually being lost.d.Constant supplies of freshwater are not actually necessary for survival.
Which of the following is not an option for solving the world water crisis?a.desalinationb.finding new sources of freshwaterc.reducing overconsumptiond.wastewater treatment plants
Ocean water is sometimes referred to as saline water as it contains significant concentrations of dissolved salts. Please select the best answer from the choices provided
Most people in cities get their water _______.a.by supplying it themselvesb.by delivery through pipesc.through private suppliersd.all of the above
Which of the following best describes the availability of freshwater on Earth?a.Less than 1% of Earth’s water is liquid freshwater.b.More than two thirds of Earth’s freshwater is stored in glaciers and icecaps.c.99% of liquid freshwater on Earth is stored as groundwater.d.All of the above.
The principle reason that most of North America and Europe do not have difficulties with access to potable water is their wealth.
Drinking non-potable water does not carry significant health risks.
The defining characteristic of potable water is that it _______.a.is used as tap waterb.can be used for washing and irrigationc.can be used and consumed without riskd.is delivered through pipes
Lakes and rivers constitute _______.a.87% of freshwaterb.a tiny fraction of Earth’s freshwaterc.a majority of Earth’s freshwaterd.a majority of water on earth
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