Desert areas
A) always contain sand dunes.
B) are typically not eroded by water.
C) typically contain very little desert pavement.
D) are eroded by both wind and water.
Answer: D
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Coral bleaching occurs due to the expulsion of the symbiotic algae from the coral
Indicate whether the statement is true or false
Oil price history shows that prices have changed sharply on several occasions. Which is NOT an event that led to a sharp fluctuation in barrel price?
A) OPEC refused to sell oil to allies of Israel in 1973. B) The end of the Iran-Iraq war in 1988 led to lower prices. C) Oil companies control supply of oil in Southwest Asia in the early 70s keeping prices low. D) The U.S. government removes all subsidies in 1980 to major oil companies like Exxon-Mobil causing an increased prices. E) The Iranian Revolution in 1979 and Iran-Iraq war trigger oil shortages and higher prices.
The upper surface of a glacier is brittle and often contains cracks called ____________________
Fill in the blank(s) with correct word
Which of the following is a tidal current?
A) ebb tide B) flood tide C) spring tide D) both flood and ebb tide