What are two ways (one natural and one human-induced) in which the sediment budget of a coastline can become negative?
The sediment source could be eliminated by rising sea level, a change in shoreline topography, or a change in drainage pattern. Human-made dams across streams which feed sediment to the shore can starve a shoreline of sediment.
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Bt crops ________
A) are widely grown in Europe but have been banned in the United States B) include strawberries that are resistant to frost damage C) have seeds that will only germinate under laboratory conditions D) have not yet been approved by the FDA E) have been given a bacterial gene that gives chemical protection against insect pests
Which rock type makes up approximately 90% of the Earth's crust
A) sedimentary B) metamorphic C) igneous
Which of the following is not a physical property of gold?
A) characteristic color B) density C) electrical conductivity D) None, they are all physical properties.
The following diagram illustrates the Hydrologic Cycle. Match the item below to the arrow on the diagram (note: some items may be used for more than one arrow).Example: If you believe that water passes from clouds to streams by evaporation then choose that answer for arrow 3.
Match the item below to the arrow on the diagram for number 1. (Note: some items may be used for more than one arrow).
A. Evaporation B. Infiltration C. Transpiration D. Runoff E. Precipitation