The combination of heating and cooling degree days gives a practical indication of the energy requirements over the year
a. True
b. False
ANSWER: True
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What is the main reason why the oceans are salty?
A) The early oceans were salty because comets are dirty snowballs. B) Salt deposits that formed early in Earth's history become dissolved by modern oceans. C) Weathering of rocks releases chemical elements that make the oceans salty. D) Blowing salt crystals become incorporated into clouds and falls with the rainfall.
Geologists of the mid-twentieth century determined that the ocean floor was much older than the centers of continents
a. True b. False
The lifestyles of the major native groups were as follows:
A) The Aleut and the Algonquins primarily hunters and inland fishers, while the Athabascans and the Inuit were predominately oriented to a marine lifestyle. B) The Athabascans and the Algonquins were primarily hunters and inland fishers, while the Aleut and the Inuit were predominately oriented to a marine lifestyle. C) The Inuit and the Aleut were primarily hunters and inland fishers, while the Athabascans and the Algonquins were predominately oriented to a marine lifestyle. D) The Athabascans and the Inuit were primarily hunters and inland fishers, while the Aleut and the Algonquins were predominately oriented to a marine lifestyle.
How and when did the region come to be known as Latin America?