One of the promises made by the government in 1994 was "free electricity." Since 2003 the government has provided a small amount of electricity free to each household. Beyond that, a household must pay for the electricity that it uses. Many people would prefer a flat-rate pricing system, where each household throughout greater Johannesburg would pay the same rate each month. This would mean that ________.

One of the promises made by the government in 1994 was "free electricity." Since 2003 the government has provided a small amount of electricity free to each household. Beyond that, a household must pay for the electricity that it uses. Many people would prefer a flat-rate pricing system, where each household throughout greater Johannesburg would pay the same rate each month. This would mean that ________.

A) all households in Johannesburg would be able to have all the electricity that they need
B) Eskom, the electric company, would probably make huge profits in Soweto
C) wealthy households would end up paying much more and have less electricity than they do now
D) there would not be enough electricity left to provide service to poor households
E) with less incentive to keep electric usage low, environmental issues related to the generation of electricity would worsen

Answer: E

The major long-term global problem with using coal to generate electricity is the ________.

The major long-term global problem with using coal to generate electricity is the ________.

A) environmental damage in the area around the mine
B) water pollution
C) effect of the released carbon dioxide on global climate
D) particulate pollution
E) sulfur dioxides released

Answer: C

Other than in downtown Johannesburg, the worst air pollution in the region in the year 2000 was in Soweto. The probable explanation is that in downtown Johannesburg ________, while in Soweto ________.

Other than in downtown Johannesburg, the worst air pollution in the region in the year 2000 was in Soweto. The probable explanation is that in downtown Johannesburg ________, while in Soweto ________.

A) coal-fired electrical plants were the cause; automobile traffic in overcrowded areas was the problem
B) automobile traffic was the cause; automobile traffic was also the cause
C) automobile traffic was the cause; the burning of fuels in each home for heating, light, and cooking was the major contributor to indoor and outdoor air pollution
D) gasoline-powered electrical generators were the cause; trash incinerators were a problem
E) trash incinerators were a problem; gasoline-powered electrical generators were the cause

Answer: C

Along with many other governmental reforms that began in 1994, the electrical plant just outside Soweto was closed in 2000, and other plants were brought into use. Some parts of Soweto were then wired for electricity. It is estimated, however, that only about 30% of the more than 1 million black inhabitants have electricity in their homes; the remainder either cannot afford the costs involved or live in areas that have no electrical access. These inhabitants probably use ________ for fuel.

Along with many other governmental reforms that began in 1994, the electrical plant just outside Soweto was closed in 2000, and other plants were brought into use. Some parts of Soweto were then wired for electricity. It is estimated, however, that only about 30% of the more than 1 million black inhabitants have electricity in their homes; the remainder either cannot afford the costs involved or live in areas that have no electrical access. These inhabitants probably use ________ for fuel.

A) natural gas and solar cells
B) natural gas and backyard windmills
C) charcoal and candles
D) wood and coal
E) gas-powered home generators

Answer: D