Science, Energy, and the Environment Final Exam Review

Science, Energy, and

the Environment

Final Exam Review

Areas

Energy

SoilTrash

• 1. All of the following are forms of indirect solar energy except:

• a. wind b. flowing water• c. geothermal energy d. firewood

•2. Most commercial energy comes from

•a. direct solar energy b. indirect solar energy

•c. extracting and burning fossil fuels

•d. nuclear energy

• 3. To make decisions about energy alternatives, we need to ask:

• a. What is the estimated net useful energy yield?• b. How much will it cost to develop, phase in, and

use?• c. What are the potential environmental and

social impacts?• d. all of these

• 4. To reduce energy waste we must• a. increase energy consumption

b. improve energy efficiency• c. switch from fossil fuels• d. use only solar technologies

• 5. Reducing energy use and waste does all of the following except:

• a. extend the length of time fossil fuels will last

• b. ease international tensions• c. improve global military security• d. cause an economic recession

• 6. Which of the following reasons is the worst explanation for the lack of US interest in energy efficiency?

• a. Currently fossil fuels are cheap.• b. Other industrialized countries are not

pursuing strong energy-efficient policies.• c. Environmental pollution costs are not

reflected in the price of fossil fuels.• d. Harmful health costs are not reflected in

the price of fossil fuels.

• 7. Electric cars • a. are noisy• b. have been totally ignored • c. have batteries that last a car’s lifetime

d. require less maintenance

• 8. Renewable energy resources include all of the following except

• a. the sun• b. the wind• c. nuclear power• d. Earth’s internal heat.

• 9. Developing renewable energy resources would • a. save money and create jobs• b. eliminate the need for oil imports• c. increase national security• d. all of the above

• 10. Cells that convert solar energy directly into electricity are called

• a. electrosolar chips• b. photovoltaic cells• c. helioelectric units• d. photoelectric cells

• 11. Tidal power plants • a. have high construction costs• b. run on water that flows in and out of

coastal bays• c. have few suitable sites• d. all of these

• 12. Wind power • a. is an unlimited source of energy at

favorable sites• b. offers quick construction time• c. has a moderate to high net useful energy

yield• d. all of these

• 13. Wind farms • a. may be noisy• b. may interfere with migratory birds• c. require backup energy if the wind is not

steady• d. all of these

• 14. Biomass includes• a. wood and wood products• b. manure• c. gaseous biofuels• d. all of these

• 15. A major disadvantage of using biomass energy is

• a. high moisture content which lowers the net energy yield

• b. higher nitrous oxide and sulfur dioxide emissions than other sources of energy

• c. lack of versatility in its use and application

• d. that it is not renewable.

• 16. Which of the following statements about geothermal energy is false?

• a. It is moderate net energy yields for large, accessible sites.

• b. Easily accessible geothermal sites are rare.

• c. It releases much carbon dioxide.• d. It can further degrade forests and other

adjacent ecosystems.

• 17. Oil is widely used because it• a. is relatively cheap• b. is easily transported• c. has a high net useful energy yield• d. all of these answers

• 18. The fatal flaw of oil is that it• a. produces more carbon dioxide than any

other fuel• b. produces destruction of nature through

oil spills• c. can contaminate groundwater supplies• d. will be commercially depleted in the

relatively near future

• 19. ____ is the dirtiest fossil fuel to burn.• a. oil b. natural gas• c. coal d. wood

• 20. The key advantage to using fuel cells even though some use fossil fuels is

• a. that they are cheap• b. can be made commercially• c. are highly efficient• d. are still in the developmental state

SOILVocabulary, Issues, and Agriculture

• 21. Soil is composed of• a. mineral nutrients• b. air and water• c. microscopic decomposers• d. all of these answers

• 22. Soil indirectly provides humans with• a. medicines• b. pure water• c. recycling services• d. all of these answers

• 23. A cross-sectional view of the _____ in a soil is properly termed a soil ______.

• a. horizons then profile• b. horizons then sample• c. surface litter then sample• d. surface litter then profile

• 24. Humus is• a. something you put on pita crackers• b. indicative of poor soils• c. light colored or nearly white• d. partially decomposed organic matter

• 25. The downward movement of water through soil is called

• a. infiltration b. weathering• c. porosity d. accumulation

• 26. Which of the following types of soils has the least pore space?

• a. silt b. loam• c. clay d. sand

• 27. Which of the following sites would be expected to have the most rapid erosion rates?

• a. agricultural landb. forest

• c. rangelandd. construction sites

• 28. Conservation tillage reduces• a. labor costs

b. amount of erosion• c. water loss from soil• d. all of these answers

• 29. Contour farming involves• a. converting a steep slope into a series of

terraces.• b. building a series of small dams• c. plowing at right angles to slopes• d. plowing straight down slope or straight

up slope

• 30. Planting crops in alternating rows of close-growing plants

• a. creates windbreaks• b. is called strip cropping• c. is called crop rotation

• d. increases erosion rates•  

• 31. In alley cropping• a. crops are planted between hedgerows of

trees • b. terraces are built to prevent swift water

runoff• c. plowing runs across slopes• d. special tillers are used so the topsoil is

not disturbed

• 32. Which of the following is not one of the three major types of organic fertilizer?

• a. green manure b. sewage sludge• c. compost d. animal manure

• 33. The term under nutrition refers to people who • a. eat less than the basic minimum of

calories per day• b. eat balanced meals• c. eat too much food• d. suffer from poor food quality

• 34. The term malnutrition refers to people who• a. eat less than the basic minimum of

calories per day• b. eat balanced meals• c. eat too much food• d. suffer from not eating the needed

balance of nutrition

• 35. A pest is any organism that• a. spreads disease• b. interferes with human activity• c. competes with humans• d. all of these

• 36. Pesticides kill• a. rodents b. weeds• c. insects d. all of these•  

• 37. According to pesticide proponents, pesticides• a. work faster than alternate controls• b. increase profit for farmers• c. saves money and lives• d. all of these

• 38. Pesticide applications have threatened• a. honeybee colonies• b. predatory birds• c. fish-eating birds• d. all of these

• 39. Sustainable agriculture is characterized by a major use of

• a. massive irrigation projects• b. fossil fuels• c. pesticides• d. organic fertilizers

• 40. An individual can support the concept of sustainable agriculture by

• a. eating lower on the food chain• b. developing a home garden • c. using biological pest control• d. all of these answers•  

Waste and Recycling3R’s, management, and issues

• 41. Which of the following questions is least likely to be asked by an environmentalist?

• a. Where do we put all of this waste?• b. What strategies can turn the waste of one

industry into the resources for another?• c. What policies encourage products that

last?• d. How can industries reduce the formation

of toxic by-products?

• 42. The top priority in pollution prevention approach to solid waste would be

• a. recycling b. reusing• c. reducing d. burning

• 43. A low-waste approach • a. eliminates unnecessary packaging

b. makes a products last longer• c. uses less material• d. all of these answers

• 44. Compost is most completely described as• a. manure• b. landfill by-products• c. pure garbage• d. soil conditioner & organic fertilizer

• 45. Which of the following substances can be recovered from solid waste?

a. metals b. plastics• c. paper d. all of these

• 46. Consumers of recycled products are most effective when they maximize the amount of ______ waste in the products.

• a. pre-producer b. post-producer• c. pre-consumer d. post-consumer

• 47. Environmentalists would most object to plastics used in

• a. lunch boxes b. shampoo bottles• c. packaging d. storage containers

• 48. Obstacles to recycling in the US include• a. environmental cost • b. inconvenience• c. tax breaks• d. all of these

• 49. Secondary recycling means• a. materials are remade into the same

product (paper to paper)• b. materials are remade into different

products (jeans to carpet)• c. materials are recycled before they are

used by a consumer• d. all of the above

• 50. The study of environmental science includes • a. anthrosphere• b. biosphere• c. hydrosphere• d. all of the spheres