An evolutionary advantage of less body hair and more sweat glands most likely occurred as a result of .
a. bipedalism
b. decreased melanin production
c. migration from the plains to mountainous regions
d. the global spread of populations to Arctic regions
e. the tendency for early humans to conserve more body heat

Aremote community desperately needs more electrical energy. it is located in an area with the following characteristics: average wind speed of 15 – 20 km/hr some medium-sized rivers with slow-moving currents few coal deposits some oil exploration being conducted within 400 miles based on the above information, which energy source would be the most economical and safest for the community to pursue? a. fossil fuel b. hydroelectric c. nuclear d. wind