High salinity is due to :
A) fish sweat
B) precipitation exceeding evaporation
C) evaporation exceeding precipitation
D) both b and c
Answer: C) evaporation exceeding precipitation
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Which of the following statements most accurately describes the pattern of domestication in Southwest Asia and North Africa?
A) Experimentation with wild cattle, sheep, and goats 10,000 years ago led to pastoral nomadism, and later to domestication of wheat and barley and the establishment of farm settlements. B) Experimentation with wild wheat and barley 10,000 years ago and the simultaneous domestication of cattle, sheep, and goats, which eventually led to establishing farming villages. C) Experimentation with wild wheat and barley 5,000 years ago and the simultaneous domestication of cattle, sheep, and goats, which led to the establishment of farming villages. D) Experimentation with wild wheat and barley 5,000 years ago and the simultaneous domestication of cattle, sheep, and goats. Farming villages and pastoral nomadism developed together. E) Experimentation with wild wheat and barley 10,000 years ago led to farm settlements and domestication of cattle, sheep, and goats.
Given the calculation: 4.877 + 12.87 + 9.19 = ? What is the answer reported to the correct number of significant figures?
A) 26.937 B) 26.93 C) 26.94 D) 26.9
Globally, where is most fresh water stored?
A. In glacial ice B. In the Great Lakes C. In groundwater
Most of North America, including the United States and Canada, lies within the ________ zoogeographic realm
A) Australian B) Neotropical C) Palearctic D) Ethiopian E) Nearctic