Dead zones, such as those found in the Chesapeake Bay and the Gulf of Mexico, are a consequence of
a. thermal pollution
b. groundwater pollution
c. nutrient pollution
d. All of the above help create dead zones
Answer: C
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On a humid day, the attraction of water by hydrophobic condensation nuclei causes salty potato
chips left outside in an uncovered bowl to turn soggy. Indicate whether the statement is true or false.
________ is weathered unconsolidated material on top of solid bedrock.
A. Dirt B. Mud C. Regolith D. Clay E. Sand
Which of the following is a correctly described statement about part of the hydrologic cycle?
A. Raindrops form through the process of evaporation. B. Precipitation refers to minerals coating sand grains with natural cement. C. Movement of water is restricted to rainfall and rivers. D. Most groundwater forms when water on the surface infiltrates into the ground. E. None of these.
Which of the following is an example of a positive check on population, in Malthusian Theory?
A) disease B) death C) smaller families D) famine E) war