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10 Cards in this Set

  • Front
  • Back
Which of the following techniques would be appropriate for just separating macroscopic (large) particles in a mixture?
*separation
*filtration
*adsorption
*distillation
filtration
Which technique relies on differences in solubility?

*separation
*filtration
*adsorption
*distillation
separation
A separation technique that depends on differences in the boiling points of the substances in a solution is called:

*separation
*filtration
*adsorption
*distillation
distillation
The hydrologic cycle is responsible for all of the following except

*providing a constant supply of fresh water
*erosion of rock and soil
*formation of clouds and precipitation
*increasing the mineral content on oars
increasing the mineral content in oars
Which of the following is not a direct water use?

*water used to make a powdered drink
*water used to grow a fruit tree
*flushing a toilet
*eating a moist apple
water used to grow a fruit tree
Which of the following statements is not true regarding the hydrologic cycle?

*the two major steps of the cycle are evaporation and flocculation
*due to this cycle, the world has contained about the same amount of water for millions of years
*this cycle is the world's self-recycling system for water
*the cycle helps to provide the purest natural water found on earth
the two major steps of the cycle are evaporation and flocculation
Most of the earth's supply of water is found in

*rivers
*oceans
*glaciers
*water vapor
oceans, 97% of the earth's water is found in oceans
Which of the following correctly reflects the decreasing order of abundance of water supplies:

*oceans-glaciers-icecaps0groundwater-lakes-atmosphere
*glaciers-icecaps-oceans-rivers-groundwater-lakes-atmosphere
*oceans-atmosphere-glaciers-icecaps-rivers-lakes-groundwater
*none of the above
oceans-glaciers-icecaps0groundwater-lakes-atmosphere
Which is the best example of indirect water use?

*325 L of water are consumed by citizens daily
*a shower uses 19 L of water daily
*my water bill is $485 per month
*120 L are required to produce a 1.3 L juice can
120 L are required to produce a 1.3 L juice can, the unseen water used to make products is indirect water use
Which is the correct ranking for density of water, in increasing order?

*gas, solid, liquid
*gas, liquid, solid
*solid, gas, liquid
liquid, gas, solid
gas, solid, liquid- water vapor is least dense , ice is less dense than water and the liquid of water is its densest form