nonrenewable resources

nonrenewable resources

A nonrenewable resource is a natural resource that is consumed or used up faster than it can be made by nature. Two main types of nonrenewable resources are fossil fuels and nuclear power. Fossil fuels, such as petroleum, coal, and natural gas, formed from plant and animal remains over periods from 50 to 350 million years ago. They took millions of years to form. Humans have been consuming fossil fuels for less than 200 years, yet remaining reserves of oil can supply our needs only until around the year 2055. Natural gas can only supply us until around 2085. Coal will last longer, until around the year 2250. That is why it is so important to develop alternate forms of energy, especially for our cars. Today, electric cars are becoming more and more common. Considering the year 2055 is not that far away, what would happen if we ran out of gasoline? Alternative use of energy, especially in transportation, must become a standard feature of all cars and trucks and planes by the middle of the century. Nuclear power is the use of nuclear energy ( nuclear fission) to create energy inside of a nuclear reactor ( Figure uranium fuel supplies, which will last to about the year 2100 (or longer) at current rates of use. However, new technologies could make some uranium fuel reserves more useful. Population growth, especially in developing countries, should make people think about how fast they are consuming resources. Governments around the world should seriously consider these issues. Developing nations will also increase demands on natural resources as they build more factories ( Figure 1.2). Improvements in technology, conservation of resources, and controls in population growth could all help to decrease the demand on natural resources. Aerial photo of the Bruce Nuclear Gener- ating Station near Kincardine, Ontario. Per capita energy consumption (2003) shows the unequal distribution of wealth, technology, and energy use.

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questions

two main types of nonrenewable resources are fossil fuels and nuclear power.

-->  a. true

b. false

it is possible that by the year 2055, the worlds oil reserves will be gone.

-->  a. true

b. false

nuclear energy is derived from

-->  a) uranium.

b) helium.

c) hydrogen.

d) all of the above

what will help decrease the demand on natural resources?

a) improvements in technology

b) controls in population growth

c) conservation of resources

-->  d) all of the above

what countries have the highest energy consumption per person?

a) china and india

b) the united states and england

-->  c) the united states and australia

d) the united states and canada

current fuel supplies for nuclear power will last only to about the year

a) 2050.

-->  b) 2100.

c) 2200.

d) 2250.

oil took millions of years to form, but ____ years to completely use.

a) less than 200

-->  b) 250 to 300

c) about 500

d) around 1,000

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