What role do site and situation play in the development of primate cities?
Being next to a body of water greatly helps a city. It makes trade easier and can protect from attack.
What relationship do you see between primate cities and capital cities?
Primate cities are usually also capitol cities.
What might explain why some countries do not have a primate city?
A country that doesn't have a primate city is likely to have many big cities. Some may have a very high population, but one city does not stand out as a primate city.
What energy sources is the world using to meet most of its energy needs?
The world is relying mainly on nonrenewable resources to meet its energy needs.
Why isn’t the world getting more of its energy from renewable resources?
In the past, generating energy from renewable resources has cost more than burning oil or gas.
How much of the United State’s electricity was produced using renewable resources in 2012?
13.2 percent of the United States energy was produced using renewable resources in 2012.
What are the sources of renewable energy in the United States?
Hydroelectricity, wind power, solar thermal power, solar photovoltaic power, geothermal power, solar water heating, biomass, biofuels, and wave power are all all sources of renewable energy in the US.