ANALYSE AND APPLY 6. Copy the following table into your workbook.
How people use it
Human impacts, both positive and negative
How it formed
Positive impacts
Negative impacts
Characteristics
a. Select one of the landscape types described in this lesson and complete the table, stating the positive and negative aspects of human use. b. Determine which list is larger — the positive impacts or negative impacts. c. Review the column of negative impacts. Select three of these impacts and propose a way in which the environment could be used more sustainably. 7. Describe how the scale of the following landscapes might differ around the world: deserts, polar regions, aquatic landscapes and islands. 8. Explain which of the featured landscapes you would like to know more about. Create a list of questions that you would like to have answered. EVALUATE AND COMMUNICATE 9. Evaluate the comment that rainforests are the most diverse landscape on Earth. 10. Identify the featured landscape that you think would be the least diverse. Justify your answer. Answers and sample responses for this topic are available online.
LESSON 13.3 How are landscapes created?
LEARNING INTENTION By the end of this lesson you should be able to: • explain the geomorphological processes that produce landforms • explain how water changes landscapes.
Tune in Processes are at work to continuously sculpt and change the landscape. In the future, the Earth’s surface will look quite different from the way it looks today. FIGURE1 (a) and (b) show similar landforms at different locations.
FIGURE 1 (a) Arches at Santa Cruz, USA (a coastal environment) (b) Lake Powell, USA (an inland environment) (c) the Grand Canyon.
(a)
(b)
(c)
1. Do you think these landforms were created by the same processes? Justify your response. 2. Describe how you think one of these landscapes looked one million years ago. 3. Explain how you think one of these landscapes might change over the next one million years.
TOPIC13 Landforms and landscapes – diversity, significance and management 287
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