Dynamic lows result from
A) localized heating of the air from below.
B) localized cooling of air from below.
C) upper-tropospheric motions.
D) lower-tropospheric motions.
Answer: C
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Which statement least characterizes laboratory research?
a. It allows measurement of model ecosystems and populations under controlled conditions. b. It is faster than similar field research. c. It is less costly than similar field research. d. It has been used to develop most of our knowledge about ecosystems. e. It has supplemented field research since the 1960's.
Briefly explain how healthy mangrove forests and coral reefs helped to reduce the death toll during the 2004 tsunami in Indonesia
What will be an ideal response
Moving toward the Southern border of the United States, English becomes less common and Spanish is more often spoken. What type of region does this gradual change of language reflect?
A) formal B) functional C) vernacular D) bilingual
What term refers to the health damage that occurs following exposure to a chemical or other agent?
A. toxicity B. biomagnification C. persistence D. response E. dose