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Let’s Mark the Boundaries
Objectives:
 Describe the distribution of active volcanoes, earthquakes, epicentres and major mountain belts.
 Determine the scientific basis for dividing the lithospheric plates
Questions:
A. Refer to figure 5 on page 11
5. How are earthquakes distributed on the map?
6. Where are they located?
7. Where are there no earthquakes?
8. Why is it important for us to identify areas which are prone to earthquakes?
B. Refer to figure 6 on page 12
9. How are volcanoes distributed?
10. Where are they located?
11. Based on the map, mention a country that is unlikely to experience a volcanic eruption.
12. Compare the locations of majority of earthquake epicentres with the location of volcanoes around
the world.
C. Refer to figure 7 on page 13
13. How will you relate the distribution of mountain ranges with the distribution of earthquake
epicentres and volcanoes?
D. Refer to figure 2 on page 7
14. What do you think is the basis of scientists in dividing Earth’s lithosphere into several plates?