30. Recycling Rates Make a bar graph of the data above.

31. Bottle Recycling For every 1,000 glass beverage bottles that are produced, how many are recycled?

32. Nonrenewable Resources 45.8 billion (45,800,000,000) cans were thrown away in 2000. If it takes 33.79 cans to equal one pound and the average scrap value is $0.58/lb, then what was the total dollar value of the discarded cans?

33. Ozone Depletion The thin ozone layer called the "ozone hole" over Antarctica reached nearly 27,000,000 km2 in 1998. To conceptualize this, the United States has a geographical area of 9,363,130 km2. How much larger is the "ozone hole" in comparison to the United States?

34. Increased CO2 Levels To determine the effects of increased CO2 levels in the atmosphere, scientists increased the CO2 concentration by 70 percent in an enclosed rain forest environment. If the initial CO2 concentration was 430 parts per million, what was it after the increase?

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(l)Steve McCutch eon/Visual s Unlimited, (r)James N. Westwater chaprer f^l Standardized Test Practice

Part 1 T Multiple Choice

Record your answers on the answer sheet provided by your teacher or on a sheet of paper.

1. From what natural resource are plastics, paints, and gasoline made?

B. petroleum D. natural gas

Use the illustration below to answer questions 2-4.

2. What is produced by the mechanism shown in the illustration?

A. electricity C. petroleum

B. coal D. plastic

3. In which section are the turbine blades found?

4. Which section represents the generator?

5. Which of the following is necessary for the production of hydroelectric power?

A. wind

B. access to a river

C. exposure to sunlight

D. heat from below Earth's crust

6. With which type of alternative energy are photovoltaic cells used?

A. hydroelectric power

B. geothermal energy

C. nuclear energy

D. solar energy

7. Which of the following is a type of air pollution that results when sunlight reacts with pollutants produced by burning fuels?

A. ozones C. smog

B. acid rain D. UV radiation

Use the photograph below to answer questions 8 and 9.

8. What is the name of the method of farming illustrated above?

A. contour plowing C. terracing

B. strip cropping D. no-till farming

9. What is the purpose of the method shown in the illustration?

A. to decrease soil erosion from wind

B. to decrease soil erosion from water flow

C. to decrease acid rain production

D. to increase the return of nutrients to the soil

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Qualifying Terms Look for qualifiers in a question. Such questions are not looking for absolute answers. Qualifiers could be words such as most likely, most common, or least common.

Question 18 The qualifier in this question is possible. This indicates that there is uncertainty about the effects of global warming.

.David R. Frazier Photolibrary

Standardized Test Practice


Record your answers on the answer sheet provided by your teacher or on a sheet of paper.

10. Give one example of a renewable source of energy and one example of a nonrenewable source of energy.

Use the illustration below to answer questions 11 and 12.

11. What type of alternative energy is the girl using in the diagram?

12. Name one benefit and one drawback to using this type of energy for cooking.

13. What are two ways that smog can be reduced?

14. A group of students collects rain outside their classroom, then tests the pH of the collected rain. The pH of the rain is 7.2. Can the students say that their rain is acid rain? Why or why not?

15. Why do we depend on the greenhouse effect for survival?

16. What is the cause of algal blooms in lakes and ponds?

Record your answers on a sheet of paper.

17. Are renewable resources always readily available? Explain.

18. What are the possible worldwide effects of global warming? What causes global warming? Why do some people think that using fossil fuels less will decrease global warming?

19. A family lives in a house that uses solar panels to heat the hot water, a wood-burning stove to heat the house, and a windmill for pumping water from a well into a tower where it is stored and then piped into the house as needed. What would be the result if there was no sunlight for two weeks?

Use the illustration below to answer question 20.

Rain Forests

20. What does the diagram represent?

21. Explain how different kinds of plastics are recycled.

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