Earth Science B 1-2

The water molecule is a polar molecule. Why is a water molecule polar?

• because the electrons are shared equally

•  

  because oxygen has a stronger attraction for electrons than hydrogen

  
  

•  

  because It is very cold

  
  

•  

  because hydrogen atoms have a stronger attraction for electrons than oxygen

  
  

Which statement is true about the water cycle?

• It begins and ends in the oceans.

•  

  It has no beginning and has no end.

  
  

•  

  It begins in the oceans and ends in groundwater aquifers.

  
  

•  

  It begins in the atmosphere and ends in the oceans.

  
  

The grains in granite are extremely close, thus preventing water from passing through them. This is an example of what type of rock?

• durable

   

   

• porous

   

• impermeable

• permeable

In what process can water change from a liquid to a solid?

•  

   

  condensation

   

• evaporation

• precipitation

• runoff

Which of the following describes the process of transpiration?

• Water goes from the soil through the ground to an aquifer.

•  

   

  Water goes from the soil through the ground to a spring.

  
  

  
  

• Water goes from the soil to the atmosphere by changing from liquid to gas.

• Water goes from the soil to the atmosphere through a plant.

Which of the following are reservoirs for water?

1. 1:Atmosphere

2. 2:Ocean

3. 3:Glaciers

• 1 and 2 only

   

•  

  1 and 3 only

• 1,2, and 3

• 2 and 3 only

Which statement about the worldwide distribution of water is true?

• Usable water resources are very evenly distributed around the planet.

• Many areas of the world receive very little water from rainfall or rivers.

• Water resources are well matched to human population size worldwide.

• Water scarcity is likely to become a less important problem in the near future.

What is the correct term for rising water vapor meeting colder air and turning back into water droplets?

• condensation

   

• transpiration

   

• sublimation

   

• evaporation

Which statement about aquifers is false?

• They may lie beneath deserts.

   

• Their source regions may be far away.

• They are always deep below the surface.

   

• They may become contaminated by ocean water.

 Which of the following statements describes brackish water?

• has more salt than freshwater but less than sea water

  
  

• has no salt, which is different than sea water

• has more salt than freshwater and more than sea water

• has less salt than freshwater and less than sea water