Download
1 / 90
930 likes | 1.44k Vues
Primary Economic Activity. Taking resources from the land or the sea. Economic Activity. Economic Activity can be divided into 3 categories. These are; 1. Primary Economic Activity 2. Secondary Economic Activity 3. Tertiary Economic Activity What is Primary Economic Activity?
E N D
Primary Economic Activity Taking resources from the land or the sea
Economic Activity • Economic Activity can be divided into 3 categories. These are; • 1. Primary Economic Activity • 2. Secondary Economic Activity • 3. Tertiary Economic Activity • What is Primary Economic Activity? • Primary economic activity involves taking natural resources from the land or the sea. • Q. What is a natural resource? • Q. What natural resources are available from the land or the sea?
Primary Economic Activity • We now know that Primary economic activity involves taking natural resources from the land or the sea. We take resources from the land and the sea in the following ways; • 1. Farming • 2. Fishing • 3. Forestry • 4. Mining • 5. Quarrying • Q. Many people work in the primary economic sector. List some jobs that people do in the primary economic sector.
Primary Economic Activity • In developing (poorer) countries many people are employed in primary economic activities. • Q. Why do you think this is? • In developed (rich) countries less people are employed in primary economic activities. • Q. Why do you think this is?
Natural Resources • Natural resources are things provided by nature which are useful to people. • Q. Make a list of things provided by nature which are useful to people.
Types of Natural Resources • There are 2 types of natural resources. • 1. Renewable resources • 2. Non-renewable resources Q. How do you think these types of resources are different?
Renewable Resources • Renewable resources are resources that can be used over and over again. With careful management, they will not run out. • For example, if we cut down trees to make wood, we can plant new trees to take their place. • Q. Can you think of any other examples? • Other examples include water, fish, plants/crops. • Q. Explain why these examples are renewable resources.
Non-Renewable Resources • Non-renewable resources are resources that can only be used once. Each time such resources are used less of that resource is left for the future. Non-renewable resources will eventually run out. • Q. Can you think of any examples of non-renewable resources? • Examples include coal, oil, gas, and peat. • Q. Explain why these examples are non renewable resources.
Water – A Renewable Natural Resource • More than 2/3 of the earth is covered in water. However, only a very small amount of the water on our planet is fresh water. • Fresh water is what we need for drinking, washing, and cooking. • Fresh water is also needed for irrigating farmland and for making things in factories.
In some countries, almost everyone has access to safe drinking water. However, in other countries many people do not have access to safe drinking water. • Q. List 5 countries where everyone has access to safe drinking water. • Q. List 5 countries where less than 33% of people have access to safe drinking water.
Water Use and Wealth • People who live in wealthy countries use much more water than people who live in poor countries. • Q. Why do you think this is? • Q. In Ireland we do not have to pay for the water we use at home. Is this a good thing?
Water Supply in Dublin • Most of Dublin’s water comes from Co. Wicklow. • A number of reservoirs have been built to store water which is then pumped to houses in Co. Dublin • Q. Why is Wicklow a good location to get the water needed for people living in Dublin?
Water Quality • Water can be polluted by farming, and industrial activity. • Q. Why is the river quality in the Northwest of Ireland better than in the East of Ireland? • Q. What can be done to help ensure that water quality is improved in the East of Ireland?
Water Conservation –Saving Water • Water is an important natural resource. It is important that we do not waste water. • Q. Estimate how much water you use per day. • Q. Discuss things you could do to conserve water.
Irrigation Projects • Crops need water to grow. They normally get the water when it rains. • In places where there is little rainfall, irrigation is needed. • Irrigation means pumping water from a river or lake to farmland. The water is then sprinkled over the crops. • Q. Why is Irrigation common in the South of France and not in Ireland?
Oil – A Non-Renewable Resource • Oil is a non-renewable resource. • Q. Why do you think oil is considered to be a non-renewable resource? • Oil is a very important source of energy in our world today. • Q. How is oil used as an energy source? • Oil is a non-renewable resource. Therefore it is important that we try to conserve the oil we have. • Q. What can we do to help conserve the earth’s oil? Play the Game. www.willyoujoinus.com/energyville
Oil as an Energy Source • Oil is one of many energy sources used in the world today. • Q. Which of the energy sources shown on the graph do you think is the best? Why? • Q. List one positive and one negative effect of using nuclear power.
Oil Producing Countries • Which country in the world produces the most oil? • Which country in the world uses the most oil? • Explain how an oil discovery in a country can be a positive thing. • Explain how an oil discovery in a country can be a negative thing. • Name a country where oil has had a positive effect and one where oil has had a negative effect.
The Price of Oil The price of oil can go up and down depending on demand.
The Price of Oil - In 1973 oil was only $2 per barrel. - In July 2008 it was $147 per barrel. - In November 2008 it was only $47 per barrel. Q. Why did oil increase in price in the 1970’s? Q. Why did oil reach a record price of $147 a barrel in July 2008 and fall to $47 per barrel by November? Q. Explain why high oil prices is a bad thing for Irish people.
Saudi Arabia – An Oil Producing Country • Saudi Arabia produces more oil than any other country in the world. • Since the 1930’s Saudi Arabia has changed from a country where most people lived in the desert to one of the wealthiest countries in the world. • Q. How has Saudi Arabia used it’s oil money to improve the lives of its citizens? • Q. Explain how large amounts of Saudi oil money has been poorly spent.
Oil and Gas in Ireland • Unfortunately we have not yet found large deposits of oil or gas off the Irish coast. • However, there is much exploration occurring around our coastline. • Gas from Kinsale has been used to supply gas to Dublin and other cities. • Gas has also been discovered in the Corrib Gas Field. However, there has been lots of controversy regarding where this gas should be brought ashore.
Oil Use in Ireland • Q. How much oil per person wasused in Ireland in the year 2000. • Q. How much oil per person was used in other EU countries. • Q. Suggest some reasons why Irish people use more oil than other European people.
Peat is a non-renewable resource which is found in Ireland. Peat is cut from bogs, either blanket bogs or raised bogs. Q. List two differences between the two types of bogs. Exploitation of Peat
Blanket Bog • Blanket bogs are found mainly in the western counties in Ireland. • They are shallow bogs. • Their average depth is 2.6 metres.
Raised Bogs • Raised Bogs occur mainly in the central plain of Ireland. • They are very deep bogs. • Their depth can be over 10 metres.
Exploitation of Peat • Peat is exploited in 4 phases.
Cutting Turf: For about 1,000 years turf has been cut by hand in Irelandusing a peat spade called a Sleán.
Commercial Turf Cutting: • Bord na Mona, the company which exploits peat in Ireland uses many large machines. • 1. A Grader: A machine like a bulldozer used to level the surface of bog. • 2. A Miller: Amachine used to scrape peat from the surface of the bog.
What is peat used for? • Q. Peat is mainly used for…? • Q. Why is it convenient for Ireland to use peat to generate electricity? • Q. What else is peat used for?
Sources of Electricity in Ireland • Q. What % of Ireland’s electricity was made from peat in 1978? • Q. What % of Ireland’s electricity was made from peat in 2002? • Q. List two forms of electricity production which have increased since 1978.
