Which of the following is an example of a mid-ocean ridge?
A) Puerto-Rico Trench
B) Challenger Deep
C) Mid-Indian Ridge
D) East Pacific Rise
Answer: C
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Compare and contrast positive and negative feedback loops. Give an example of each and how common each is in natural systems
What will be an ideal response?
The reduction of outdoor air pollution in the United States has been so successful because:
a. The U.S. Congress supported it and diligently crafted laws to ensure its success. b. U.S. citizens insisted that the laws be passed. c. The country is affluent enough to afford the controls and improvements it required. d. All of these answers are correct. e. Only U.S. citizens insisted that the laws be passed and the country is affluent enough to afford the controls and improvements it required are correct.
Calculate the R-value for the following materials: (a) 4-in.-thick brick and (b) 12-in.- thick concrete slab.
What will be an ideal response?
An example of a rock type that could be a good aquifer is:
a. shale. b. quartz sandstone. c. clay. d. basalt. e. marble