CHAPTER 4 Resources and Land Use Section 1: World Resources Titan Blaster #1 List 10 uses for forest products.

Natural Resources Natural Resources – Materials in the natural environment that people use to satisfy their needs. Renewable resources – Constantly being replaced by the environment. Examples are water cycle and soil. Nonrenewable resources – cannot be replaced once they have been used due to our limited supply. Fossil fuels (coal, oil and natural gas) are examples.

How do we fight the loss of resources? Reduce – stop wasting our world’s valuable resources. Reuse – Don’t throw away items that can be used again. Recycle – experts believe that over half of all trash could be re-used.

Energy Sources We depend on fossil fuels too much today. All modern countries depend on gas and oil. Most countries use more than they produce. Oil and natural gas reserves are unequally spread out on the Earth. Oil companies go green

Energy Sources Coal deposits are larger and more widely distributed than oil. The USA, China and Russia have the most coal. Oil companies go green

Energy Sources It is estimated that we will run out of oil and gas within the next 100 years if we do not cut back. Oil companies go green

Nuclear energy Nuclear energy is produced by fission – the splitting of uranium atoms in a nuclear reactor to release their stored energy. Nuclear waste can be dangerous for 1,000 years.

Nuclear energy

Other Energy Sources Water power – Energy used by falling water to move machinery or generate electricity. Ex. – Hoover dam

Other Energy Sources Geothermal energy – Energy that comes from the earth’s internal heat. Magma heats the underground water producing steam that we can use.

Other Energy Sources Wind – Windmills create power by turning big turbines. Denmark leads in wind… www.hotchalk.com

Other Energy Sources Denmark leads in wind… www.hotchalk.com

Other Energy Sources Solar energy – Energy produced by the sun. It can be absorbed and stored in batteries. California to have largest solar park

Turbines

Quiz #2 What is a natural resource? Define renewable resource and give two examples. Define non-renewable resource and give two examples. How does a turbine work to produce electricity from water pressure? Define geothermal energy. Where do we get this type of energy? Where are some unique locations that we harness wind power? How can solar power be stored? What is coal used for in power plants? Why is finding an alternative power source other than fossil fuels important? Why is nuclear power controversial?

World Economic Activity Titan Blaster #2: What are four ways that people can earn money A.) near the coast B.) near a desert C.) in the mountains

Economic activities Primary economic activities rely directly on natural resources. Examples of this are hunting, fishing, farming, mining. Subsistence farming is where people grow only enough food for their family or village’s needs.

Economic activities

Economic activities Commercial farming is the production of food for sale to others.

Secondary activities Secondary economic activities are when people use raw materials to make something more valuable. An example of this is processing wheat into flour.

Secondary activities Cottage industries involve making goods by hand.

Secondary activities Commercial industries make large quantities of goods that are shipped to other regions. An example is Japanese cars.

Tertiary activities Service industries are considered to be tertiary economic activities. Examples of this are truck drivers, firefighters, and police officers.

Quaternary activities In the United States, many people work at jobs that share and acquire information. These jobs are called quaternary economic activities. Examples of these are teachers and research scientists.

World Economic Activity Titan Blaster #3: List three jobs for each category: A.) primary economic activity B.) secondary economic activity C.) tertiary economic activity D.) quaternary economic activity

Global Trade Partners Each country possesses different types and quantities of resources. They are not spread out equally. When a nation does not have enough of something, they trade with another country.

Global Trade Partners The goods that are sent out of a country are called exports.

Global Trade Partners The goods that are brought into a country are called imports.

Global Trade Partners Governments want to have a trade balance with as much going out as coming in. Too many imports, and people lose jobs. Governments control this by taxing imports.

Global Trade Partners

Level of Development The wealth of a country is measured by the GDP or gross domestic product. The GDP is the total value of goods and services produced in a country for a year divided by the population.

Level of Development

Level of Development Developed countries have a stable government and modern conditions.

Level of Development Developing countries are ones showing progress in these areas.