Earth Science

Test Description: Do your best on this game!

Instructions: Answer all questions to get your test result.

1) Which factor has the greatest effect on a community’s stores of fresh water?

2) Which type of water reservoir contains the largest volume of fresh water?

3) Which best describes the characteristics of a river basin?

4) Which two statements in the table are true about the changing salt concentrations of ocean water? 1 When Earth’s ice increases, ocean water gets saltier. 2 When Earth’s ice increases, ocean water gets less salty. 3 When ocean water evaporates, the w

5) Sammy collects some river water by dipping the jar into the water but not scooping the riverbed. What part of the river’s load will MOST likely settle to the bottom of his jar?

6) Why are many fishing boats found near ocean upwellings?

7) Which best describes the source of oxygen in ocean water?

8) Which most likely causes the western coast of the United States to be so plentiful and diverse in sea life?

9) Which best describes the shallow water ocean zone?

10) Which area of deep ocean research provides the most economic benefit?

11) Scientists have found strange new life-forms called “tubeworms” on the deep ocean bottom. Which most likely provides energy for the tubeworms?

12) Which does an increase in eutrophication indicate to scientists studying a body of water?

13) Which will occur if humans continue to overload water systems with excess nutrients?

14) If a body of water has high turbidity levels, what can most likely be concluded?

15) Which chemical elements in fertilizers pollute stormwater runoff and contribute to excessive plant growth in a water system?

16) Which will best show lakes, rivers, and streams are healthy?

17) Which best determines the health of a lake used as a source of freshwater?

18) Which factors can have the greatest effect on the health of a river system?

19) In the United States, which is responsible for ensuring the safety of the country’s drinking water?


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