Which of the following best explains what a contour line is?
a) 4.55 million years old
b) 2,500 years old
c) 10.2 billion years old
d) 4.55 billion years old
e) none of these
Answer: b) 2,500 years old
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a. True b. False Indicate whether the statement is true or false
How many worldwide earthquakes with a moment magnitude greater than 9 should we expect in any given year?
A. About 5 B. Less than 20 C. About 10 D. Less than 1 E. 1
In what time of year do midlatitude beaches get smaller?
A) Spring B) Summer C) Fall D) Winter E) At no time; there is no seasonal pattern.
Which of the following is a method of controlling pests that does NOT use pesticides?
A. the use of genetically modified organisms B. the use of pheromones to alter the behavior of insects C. the use of photosynthesis inhibiting chemicals D. the use of nonpersistent pesticides