One problem with wind energy as a major source of electricity is that it is nonrenewable
the cost of land in populated areas
the major air pollution it can cause
that it does not work at night

Which two factors contributed to creating a global culture? the creation of the united nations improvement in telecommunications health issues such as the ebola virus increased opportunities for global travel

Ture or false evidence for evolution includes millions of fossils

Which set of terms best describes a community of miners who live out in the countryside of west virginia and use specialized geological equipment to analyze the composition of rock?