Geography grade 9 slides for term 4 curriculum

Slides on grade 9 geography based on sustainability and our resource use.

1. RESOURCE USE AND SUSTAINABILITY Resource use

2. Uses of natural resources Level of development Efficient resource use Available resources

3. Renewable resources These are resources that will never run out. They can be used over and over again.

4. Non-renewable resources

5. Activity 1 What do most geographers understand the term resources to mean? Use the model of “how resource use effects development” to explain why the possession of resources don’t always lead to economic development. Copy the table below and into your workbook and place each of the following resources in the correct column. Trees gold lobster coal flowers diamonds soil natural gas wind Renewable resources Non-renewable resources

6. Effects of unwise use of resources As the population grows, it puts a strain on the available resources. Many people don’t use resources wisely and this is having a negative effect on the environment. Using resources unwisely means that the resources can be damaged or used up. Pollution affects water so we have less fresh water available. Poor farming methods cause soil erosion which leads to less land being available to grow crops for food. Deforestation has led to many habitats being destroyed and contributes to soil erosion. Not conserving electricity means that coal is used up at a higher rate than it should be. Some cars have engines that use more petrol which causes more pollution and uses up more resources. Many people don’t recycle so new products need to be manufactured. This uses up resources and causes more pollution.

7. Activity 2 What are the differences between renewable and non-renewable resources. Explain what is meant by “unwise use of resources”. Discuss two ways in which people use resources poorly. Suggest one way people can use resources more wisely.

8. Overfishing the oceans Overfishing occurs when fish are caught in large quantities that their numbers become depleted. Those that haven’t been caught are not able to reproduce and replace those that were caught. This results in a depletion of fish stocks . Many people rely on fish as their main source of food. The fishing industry also provides many people with jobs which they will lose if there are no more fish. If certain fish go extinct it will have an impact on the ocean’s ecosystems. It is therefore so important that governments implement strict laws to monitor fishing. One solution was fish farms. These are large-scale operations where dams are built and fish are raised, this means that fish species are monitored and fewer wild fish are caught.

9. Activity 3 What does over-exploitation of resources lead to? Define the term over-fishing . Summarise the causes of over-fishing. Read the newspaper article and answer the following questions. Explain why catches along the west coast are declining. What species of fish in particular have been affected? Describe how the collapse of the local fishing industry has affected the people in the area. Name two other major fishing grounds in the world that have been affected by over-fishing