Aim: What is the difference between renewable and nonrenewable resources?

Non-Renewable Resources Cannot be replenished by natural processes. Once we use them, they're gone FOREVER. Finite = limited

What are some examples of nonrenewable resources? Fossil Fuels- from the remains of organisms that lived millions of years ago Coal Oil Natural gas

What will happen in the future if we keep on using our non-renewable resources? We will run out of them because there is a finite amount of them. Once they are gone, they’re gone.

Renewable Resources Replaceable Items that will keep coming back as long as we treat them properly. Ex. when we cut down trees for paper, we can replant new trees & get more paper.

What will happen in the future if we use our renewable resources without replacing them? If they are not replaced as fast as they are used we will run out of them.

World Fish Catch World Fish Catch per Person Total Catch (million tons) Section 6-2 Over Fishing Go to Section: According to the graph below, how will the fish population be affected by human impact due to over fishing?

Alternative Energy Sources: Hydroelectricity Wind Power Solar Energy Nuclear Energy

dammed water is sent through a turbine & generates electricity. Advantages: 1)Little or no air pollution 2)Does not depend on fossil fuels Disadvantages: 1)Disruptive to surrounding aquatic ecosystems. Hydroelectricity

Wind Power wind spins turbine blades to produce electricity. Advantages: 1)Little or no pollution 2)Does not require the consumption of water to operate. Disadvantages: 1)The intermittency of wind 2)Need a lot of turbines to generate as much energy of one fossil fuel power plant.

Solar Energy the use of the sun’s energy to generate electricity. Advantages: 1)Relatively pollution free. 2)Technology is becoming more affordable. Disadvantages 1)Not available at night & reduced during cloud cover.

Nuclear Energy energy produced from the splitting of atoms. Advantages: 1)Water vapor is the only emission. 2) Low fuel costs (uranium) Disadvantages: 1)Waste is radioactive & must be properly contained for thousands of years. 2) High maintenance costs.

Energy Conservation: We need to conserve energy by reducing our usage of everyday products we have come to rely on. Ex: Turn off lights when not in use, Carpooling, Use fan instead of air conditioner, etc…