To complete these problems, first read the chapter. When you are finished, go to LaunchPad and open the Exploring with Google Earth file for this chapter. Click on the “Workbook Problems” folder to “fly” to each of the problems listed below and answer the questions. Be sure to keep your “Borders and Labels” layer activated. Refer to Appendix 4 if you need help using Google Earth.
PROBLEM 7.1 This placemark highlights a November 2012 eruption of Tolbachik volcano on the Kamchatka Peninsula. Activate the folder for this problem to answer the questions below.
Question
7.12
1. What kind of ecological succession will follow this eruption?
A.
B.
Question
7.13
2. How long is this lava flow?
A.
B.
C.
D.
Question
7.14
3. Zoom out. Where is this eruption occurring?
A.
B.
C.
D.
PROBLEM 7.2 This placemark highlights the Ponderosa fire, which burned 15,000 acres in Northern California in August 2012. Activate the folder for this problem to see a natural color satellite image of the smoke from the Ponderosa fire burning on August 19. The red outlines show hot spots where fires were still burning. If you zoom out, you will see the smoke column from the Chips fire to the south and east.
Question
7.15
1. Based on the photo accompanying this placemark, what kind of fire was this at the location of the placemark?
A.
B.
Question
7.16
2. What kind of ecological succession will occur after this fire?
A.
B.
Question
7.17
3. What is the length of the burning area shown within the red outline?
A.
B.
C.
D.
Question
7.18
4. Deactivate the fires layer by clicking the folder for this problem and zooming in to the placemark. This image was made before the fire, so no burn scar is visible. You can see a number of bare patches made by clear-cut logging of the forest here. What kind of ecological succession will take place in these patches?
A.
B.
PROBLEM 7.3 This placemark visits the Aleutian Islands of Alaska in the North Pacific Ocean.
Question
7.19
1. What kind of biological dispersal do island chains such as this provide?
A.
B.
C.
PROBLEM 7.4 This placemark visits Ascension Island.
Question
7.20
1. How far is this island from the nearest continent?
A.
B.
C.
D.
Question
7.21
2. How did native terrestrial organisms reach Ascension?
A.
B.
C.
PROBLEM 7.5 Southern California’s Channel Islands are featured here.
Question
7.22
1. About how far from the mainland is the island nearest to the mainland?
A.
B.
C.
D.
Question
7.23
2. Which of the Channel Islands would you expect to have the highest plant and animal diversity?
A.
B.
C.
D.
Question
7.24
3. The Channel Island fox (Urocyon littoralis) dispersed to the islands about 16,000 years ago. By what means did it reach the islands?
A.
B.
C.
Question
7.25
4. The fox is found on six of the islands. Assuming the fox reached the Channel Islands only once, by what means did it disperse to the other five islands?
A.
B.
C.
Question
7.26
5. There are six subspecies of the Channel Island fox, none of which look like the ancestral gray fox on the mainland. What process produced these changes?