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  REVIEW EXERCISE - 5.32

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Place a T (if the statement is true) or an F (if it is false) in the blank.

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1. The U.S. Air Force used airships throughout the 1970s.

True
False

2. Goodrich has used airships for many years to cover sporting events

True
False

3. In l989, the Soviet Union began working on a disk­shaped airship capable of lifting several hundred tons.

True
False

4. Economic and environmental concerns may help bring back the airship.

True
False

[To see correct answers click here]

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