e are random elements in the world, this is surely not one of them. (Whenever someone claims something is random, at least suspect that the person is really saying “I don’t know what I’m talking about, and I’m too lazy to find out.”) And we have not seen t he water table in Kern Commons; that would be a really nasty flood! Points Earned: 1/1 Correct Answer: C Your Response: C 2.What happened in the picture above? A.Rivers have delivered sediment to the sea, forming flat-topped deposits called deltas. B.A certain financially ailing airline that flies to Cincinnati and then Atlanta built this from thrown-out beverage cups as an advertisement. C.Turbulence where the rivers enter the sea has caused suspended sediment in the seawater to flocculate and settle, forming the deposits seen on the right. D.Divers have built the mud piles to slow down the river water and protect endangered clams that live along the coast. E.Rivers have delivered sediment to the sea, forming deltas that built up as they built out so that they still slope slightly downhill toward the sea. Two deltas have formed where streams carry sediment from the hillside into the fjord in South Greenland. The main source of sediment is the streams from the land, not suspended sediment already in the sea water. And the deposits cannot be purely flat-topped, or the rivers would not flow across to get to the sea water in the fjord. Mollusks do live along the coast but are not being protected by intrusive changes to the coastline, nor do enough people visit here to be worth advertising Delta Airlines. Points Earned: 1/1 Correct Answer: E Your Response: E
3. In the map above, blue shows the Mississippi River, and the Gulf of Mexico, around the Birdfoot Delta of the river. The USGS image uses different colors to indicate changes in the delta. Orange and red both indicate change in one direction, whereas yellow and green indicate change in the other direction. Given what we discussed in class, in the textbook, in the slide shows, and in the powerpoint outline: A. Orange and red indicate loss of wetlands over time, whereas yellow and green indicate gain of wetlands over time. B. Orange and red indicate gain of wetlands over time, whereas yellow and green indicate loss of wetlands over time. The Mississippi Delta is sinking below the waves, so the widespread orange and red must indicate loss of wetlands. Points Earned: 1/1 Correct Answer: A Your Response: A
4. Stephanie and Topher are standing next to the Colorado River in the Grand Canyon. What can be said of the water here? A. The river water is kept clear by the Park Service to keep the trout healthy. B. The river is really filled with 7-UP, hence the green color. C. The river water is naturally clear, fed by snowmelt from the Colorado Rockies.
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- Summer '06
- Outer core, Structure of the Earth, Mantle, Death Valley