The atavistic hypothesis requires.

Often the initial hypothesis requires adjustment in light of model evidence.

This hypothesis would not require the amount of heat needed to melt water ice as required by the "cold geyser" model, and would explain the lack of ammonia.

A hypothesis requires more work by the researcher in order to either confirm or disprove it.

This hypothesis requires further analysis of the passive voice before it can be considered confirmed however.

The second hypothesis, referred to by Bilson (1981) as the 'speculative efficiency' hypothesis, requires that the forward rate is equal to the expected future spot rate:

Such a hypothesis requires, however, confirmation in a large group of patients.

An alternative hypothesis, the EMP model, relaxes the requirement on thundercloud charge but instead requires a large current pulse moving at very high speed.

This hypothesis requires at least one civilization to have arisen in the past, and the first civilization would not have faced this problem.

A. They should learn that scientific hypotheses require evidence.