The Pleistocene began with major glacial advances as early as:
a. 10 thousand years ago
b. 100 million years ago
c. 26 million years ago
d. 2.6 million years ago
d
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Air masses
A) all originate from the same place. B) require one to three months to form. C) vary substantially in important characteristics on the horizontal dimension. D) often have large vertical temperature gradients.
________________ are minute particles in the atmosphere that provide a surface upon which condensation can take place
Fill in the blank(s) with correct word
Which of the following statements is FALSE concerning bycatch?
A) Bycatch are animals unintentionally killed while fishing for other species. B) Bycatch sometimes greatly exceeds the target catch. C) Bottom trawling is one of the methods that results in a lot of bycatch. D) Bycatch are commonly used for food as well.
What is the most accurate interpretation of a
“100-year flood”? A. A stream will flood every 100 years. B. The probability is 1 in 100 that a stream will flood in any year. C. A flood is expected to occur once in 100 years. D. The probability of a flood grows daily in a 100-year period. E. A stream’s flow swells until it floods every 100 years.