The troposphere:
A) is thinnest at the tropics.
B) maintains a relatively constant temperature.
C) is thicker in summer.
D) often disappears near the poles in winter.
Answer: C
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Evidence for the movement of lithospheric plates does NOT include:
a. trends of mountain ranges. b. evidence left by glaciations. c. paleomagnetic data. d. cultural artifacts from ancient humans. e. fossil plant evidence.
The language spoken by the most people in the Caribbean is French
Indicate whether the statement is true or false
Which of the following is the mechanism of peptide bond formation during protein synthesis?
A) Nucleophilic attack on the carbon of a carbonyl group by an amino group. B) Nucleophilic attack on the nitrogen of an amino group by the carbon of a carbonyl group. C) Nucleophilic attack on the nitrogen of an amino group by the oxygen of a carbonyl group. D) Nucleophilic attack on the oxygen of a carbonyl group by an amino group.
A(n) ________ is a gently sloping erosional surface, commonly covered with a veneer of gravel, cut into the solid rock of a mountain.
A. pediment B. bajada C. arroyo D. playa E. cuesta