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Hovercraft are becoming more common, and as technology improves, they have become quieter and more affordable. Hovercraft are very useful for rescuing people from floods, mud, ice and sand - as global warming increases the risk of flooding, as witnessed in Pakistan and China, hovercraft can play a very important role. Leisure hovercraft are now available, see the related link below, and small patrol hovercraft can play an important role in homeland security, particularly for patrolling coastal areas. Small race hovercraft have very thin lightweight hulls, but with the introduction of other materials such as HDPE, hovercraft can be lightweight and durable. I THINK THEY ARE NOT MORE COMMON BECAUSE THERES NOT THAT DEFINITE CONTROL OF THEM THEY DONT STOP FAST LIKE A CAR
They have their place in difficult terrain, but they are really not fuel efficient. So, they are not typically used outside of those special circumstances
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What can a hovercraft go over?
Any reasonably level surface.
What is a common multiple of the denominators of two or more fractions?
a common denominator
What is the comparative and superlative of the word common?
Common, more common, most common. However, the word "common" in practice is all-encompassing, except that perhaps one might say "the kookaburra is more common around Sydney than it is around Cairns", thus comparing cities rather than "common".
What is a common tangent?
A common tangent is a line which is tangent to two (or more) curves.
What is the greatest common factor of two or more prime numbers?
The greatest common factor of two or more prime numbers is 1.
