power supplied by animals or by people themselves
animate power
The quantity that people wish to consume and are able to buy
demand
What happens when fossil fuels are burned?
Energy stored in plants and animals from millions of years ago is released into the atmosphere
During the 19th century, what was the most common energy source in the U.S?
wood
What are the 4 main sources of energy demand in the U.S?
Industries, transportation, homes, and services
An energy source formed from the residue of plants and animals buried millions of years ago
fossil fuel
Demand for energy in the U.S; Factories are powered by roughly 41% natural gas, 33% petroleum, 6% coal, and 20% other sources. Most of the natural gas and petroleum is burned directly, whereas the other sources are consumed primarily through purchasing electricity
industry
During the late 19th century, what was the most common energy source in the U.S?
The demand for energy is equally shared between what 2 kinds of countries?
Developed and developing countries
produced in nature more rapidly than it is consumed by humans
renewable resource
almost all these systems run on petroleum products
transportation
What kind of energy is a fossil fuel an example of?
nonrenewable energy
What are the current most common energy sources in the U.S?
Petroleum and natural gas
How are developed countries use of energy expected to change in the coming years?
They are supposed to stay the same
produced in nature more slowly than it is consumed by humans
nonrenewable energy
Natural gas provides the largest share of these energy needs. Natural gas is the principal source of home heating and air-conditioning, whereas coal and nuclear power are the principal sources for the generation of electricity
Homes
What caused fossil fuels to be created over time?
intense pressure, sediment coverage, and chemical reactions
What are the 2 important inequalities geographers observe?
Supply and Demand
What country consumes the most amount of energy?
(not the U.S)
China
the quantity of something that producers have available for sale
supply
Energy uses and sources for retailers and offices are similar to those for homes
Services
Which fossil fuel is the most used worldwide?
What has been a major challenge for industries in developed and developing countries?
The unequal distribution of supply and demand energy
What continent has the highest per capita consumption of energy?
North America