In which of the following regions do continental tropical air masses typically occur?
A. northern Mexico and eastern Canada
B. the Gulf of Mexico and the southeastern United States
C. northern Mexico and the southwestern United States
D. the Gulf of Mexico and the southwestern United States
Answer: C
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Ecological and climate change ____________________ are irreversible and should never be crossed
Fill in the blanks with correct word
What is a fjord?
a. A broad, protected channel b. A deep, narrow bay modified by glaciers c. The shoreward limit of marine erosion d. A retreating glacier e. A wave-cutsea cliff
The highest stream flow occurs in
A) central Asia. B) primarily in areas of subtropical high pressure cells. C) higher latitude areas. D) northern Africa E) along the equator.
Judge the following sentence according to the criteria given below: Warmer-than-normal sea surface temperatures stress corals BECAUSE they cannot survive for long when the water temperature exceeds 20° Celsius
A) The assertion and the reason are both correct, and the reason is valid. B) The assertion and the reason are both correct, but the reason is invalid. C) The assertion is correct, but the reason is incorrect. D) The assertion is incorrect, but the reason is correct. E) Both the assertion and the reason are incorrect.