单项选择题
Directions: Read the following claim and choose the best evidence to support it.
Nuclear waste can be safely managed and stored. __________
A、The efficient use of natural resources is a major criterion in determining the environmental friendliness of a source of energy. Nuclear energy extracts by far more energy from the natural resource Uranium than does the exploitation of oil or any other natural resource. It is the most efficient use of the Earth’s resources. In fact a gram of uranium can generate as much electricity as four tons of coal.
B、Nuclear waste can be properly managed and stored with virtually no risks to society. There are very clear ways to effectively manage and store nuclear waste. All concerns related to this process relate to human error. If properly managed, all of these concerns can be addressed and all significant risks eliminated. Experience so far has been that this is a low risk process.
C、The problem of radioactive waste is still an unsolved one. The waste from nuclear energy is extremely dangerous and it has to be carefully looked after for several thousand years (10’000 years according to United States Environmental Protection Agency standards).”
D、Long-term costs of nuclear power are comparable with that of hydro-electric or coal. It is also presumable that advances in nuclear technologies and in nuclear plant construction methods will reduce costs over time.
