Download Q2 Environmental Science Study Guide

Environmental Science
Midterm Review
1. Explain the theory of Continental Drift.
2. Who proposed the theory of continental drift? ________________________________
3. What is Pangea?
4. List three types of evidence to support the Theory of Continental Drift.
5. Explain the Theory of Plate Tectonics. What key piece of information does it add to
continental drift?
6. The area of earth covered by land is known as the ____________________________.
7. Identify the following:
Divergent boundary –
Convergent boundary –
Transform boundary –
Earthquake –
Ring of Fire –
8. Tectonic plates move as a result of ________________________ in the magma below.
9. The fault that runs along the center of California and is the site of numbers earthquakes
is called the __________________________________.
10. What type of boundary causes each of the following:
Seafloor spreading –
Mountains –
Earthquakes –
Volcanoes –
Ocean trenches –
11. The point within the earth that is the point of origin of an earthquake is called the
_____________________________.
12. Liquid rock below the surface of the earth is called ________________________.
13. Liquid rock above the surface of the earth is called ________________________.
14. Describe the formation of each of the 3 types of rock
Igneous –
Metamorphic –
Sedimentary –
15. The layer of gases that surround the Earth is called the ________________________.
16. What are the functions of the atmosphere?
17. Why is oxygen in the atmosphere important?
18. Where is the ozone layer? What is it’s function?
19. List the layers of the atmosphere in order beginning with the layer closest to the earth.
20. What is the molecular formula of ozone? _______________
21. Ozone depletion is caused by the release of what gas into the atmosphere by human
action? ______________________________________________
22. What human disease increased as a result of the decrease in ozone? ______________
23. What is the most abundant gas in the atmosphere today? ____________________
24. What is the second most abundant gas in the atmosphere today? _________________
25. The ability of the atmosphere to trap heat at the Earth’s surface is called the
___________________________________________.
26. Without the greenhouse effect, what would happen to the temperatures at the surface
of the earth?
27. What greenhouse gas is produced by human action? ________________
28. Define global warming.
29. List at least 3 environmental effects of global warming.
30. Why are convection currents in the atmosphere important?
31. The region of the earth that is covered by water is known as the _________________
32. List the 5 oceans and their distinguishing characteristics
33. What % of the earths surface is covered by water? ______________________
34. What percent of the worlds water is saltwater? ___________________
35. The measurement of the amount of salt in the ocean is called ___________________
36. Continuous moving streams of water in the ocean are called ____________________
37. Of each of the following pairs, circle the one that is more dense.
Saltwater
Freshwater
Warm water
Cold water
38. Currents form as a result of differences in ___________________ of water.
39. Explain how tides form. How often do they repeat?
40. Why are convection currents in the oceans important?
Be able to discuss:
The theory of Continental Drift and Plate Tectonics in detail
The global impact of ozone depletion and its causes and effects
The environmental impact of global warming and its causes and effects