A The benefits of solar and wind power over conventional energy sources.
B How energy resources are tapped from nature.
C Two types of alternative energy sources that should be further utilized
D Examples of the use of energy sources worldwide.
A The ways in which crows differ from other common birds.
B The myths and legends about crows.
C The characteristics that make crows difficult to study.
D The existing methods for investigating crow behaviour.
A They can successfully avoid observers.
B They are hard to distinguish from one another.
C They can be quite aggressive.
D They are difficult to catch.
A Because fossil fuels are no longer available.
B Because global warming has increased the amount of sunlight that reaches the earth.
C Because they are free and available worldwide.
D Because conventional energy sources are being depleted, and they cause environmental damage.
A They both require fairly simple technology.
B They both use heat from the earth’s surface.
C They both require the use of a generator.
D They are both conventional and costly.
A There is very little of it available inIceland
B There is enough of it to far exceed the energy needs of the world
C It is 6,000 times more powerful than energy from fossil fuels.
D It is being used in 100,000 private homes worldwide.
A The large number of stories about crows.
B The frequency with which crows are sighted.
C The amount of research that has been conducted on crows.
D The ease with which crows are identified.
A smaller than the crow
B easily identifiable
C featured in legends
D very rare
A the opportunities for advancement
B the different system of supervision
C the lack of interaction with a group
D the fact hate the work space is in the home
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