Question

which type balloons can fly ?​

Answer 1

Answer:

The two types of balloons currently used by the NASA Balloon Flight program are zero-pressure and super-pressure. Though either balloon can be used for any flight type, zero-pressure balloons typically are used for short flights, whereas a super pressure balloon is required for an extended flight.

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Answer 2

Answer:

Though either balloon can be used for any flight type, zero-pressure balloons typically are used for short flights, whereas a super pressure balloon is required for an extended flight.

Explanation:

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