In arid climates, soils are thin and soil water tends to move ________.
A. downward
B. laterally
C. sluggishly, if at all
D. upward
E. only within a given soil horizon
Answer: D
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What is the standard error of the estimate (i.e. the standard deviation of the residuals)?
Use the following data to answer the question.
Correlation between y and x: r = .584
Sample size: 20
What trophic level is occupied by the emperor penguin in the above food web? Briefly state the reason for your choice
What will be an ideal response
About 1550 CE, the human population of Easter Island was about 7,000; when the first European contact came from the crew of a Dutch ship on Easter Sunday, 5 April 1722, the population of Easter Island ________.
A. was about the same as it was in 1550 B. had become cannibalistic and ate the Dutch sailors C. had dropped to zero D. had dropped to about 2,000 E. had ballooned to nearly 50,000
Andrew was the most destructive hurricane in U.S. history in terms of both monetary losses and human lives.
Answer the following statement true (T) or false (F)