Siltation and decreased water quality are especially significant problems with
A. Low-head hydropower technology
B. Micro-hydro dams
C. Huge dams on major rivers
D. Mini-hydro dams
E. All of these equally
Answer: C
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Fly to Point 1, overlooking Moku‘a-weoweo, the summit caldera of Mauna Loa on the Big Island of Hawai‘i. Does it appear that many recent (dark black) lava flows have spilled out over the sides of the summit caldera?
Go to the Hess Physical Geography Laboratory Manual, 12th edition, website at www .MasteringGeography. com and open the KMZ file for Exercise 35 Part II, or scan the QR (Quick Response) code for this exercise to view the “Exercise 35 Part II Google Earth™ video.” You can also look at Map T-21a, a satellite image showing the summit caldera, lava flows, and rift zones of Mauna Loa. What will be an ideal response?
A stream channel is widened by erosion, but stream discharge is unchanged. Which of the following statements must be true?
A. Depth decreased and/or velocity decreased B. Depth decreased and/or velocity increased C. Depth increased and/or velocity decreased D. Depth increased and/or velocity increased
What order has the most living bony fish species?
a. Chondrichthyes b. Osteichthyes c. Teleostei d. Coelacanths
The hazard posed by a volcano depends on both the population nearby and the eruption product
a. True b. False