What is the importance of monitoring volcanic activity? Why should we pay attention to what volcanoes are doing?
What will be an ideal response?
Answer: Some volcanoes are near major population centers, so an eruption has the potential to disrupt business and travel as well as to hurt/kill large numbers of people.
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Schooling behavior is thought to offer fish several advantages. Which one of the following is NOT an advantage of schooling?
a) Being together reduces the probability of running into a predatory fish b) The school may appear as a larger, more dangerous organism to a predator c) Schooling allows fish to get more exercise as they adjust their position in the school d) The appearance of many fish may confuse an attacking predator e) The chances of being eaten are smaller for an individual when there are many other fish to choose from
Throughout time, continents break apart and collide and ocean basins open and close. This cyclical process is known as the ________.
A. Benioff cycle B. Richter cycle C. Wilson cycle D. lithospheric cycle E. Wegener cycle
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.
Horizontal pressure variations cause air to move from areas of _____ pressure to areas of ____ pressure.?
a. ?high; low b. ?low; high c. ?low; low d. ?high; high e. ?high; higher