Which of the following parts of the ocean are likely to support the lowest net primary productivity?
A) Areas beneath the subtropical highs
B) Areas where upwelling is occurring
C) Shallow seas
D) Middle-to-high-latitude areas
A) Areas beneath the subtropical highs
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Which of the following materials is not produced by erupting volcanoes?
A) Sandstone B) Basaltic lava C) Obsidian/glass D) Ash
The rotation direction of the surface current at the northern hemisphere is the opposite of that at the southern hemisphere. This discrepancy is due to:
a. the thermohaline circulation b. the gravitational forces of the Sun-Moon system c. the Coriolis Effect d. the centrifugal force of the Earth-Moon system
Judge the following sentence according to the criteria given below: Water is able to dissolve nearly everything BECAUSE water molecules interact with other water molecules and other polar molecules
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.
In 2008, Russian troops entered the __________ region to support its move towards independence from __________.
a. South Ossetian ; Georgia b. Abkhazia; Transcaucasia c. South Ossetian; Chechya d. Adjara; Georgia e. South Ossetian ; Transcaucasia