Problem: Here is a premise:
Most islands will have a little of each of these elements, but some, such as Ios, have given themselves over to party tourism almost completely.

Here is a hypothesis:
Tourists don't ever go to the island Ios.

Here are the options:

Answer: no

Problem: Here is a premise:
Even here the Waters are really little more than a large stream, but they flow into the Firth of Forth and beyond into the North Sea.

Here is a hypothesis:
The waters flow right into the Firth of Forth which is very large.

Here are the options:

Answer: it is not possible to tell

Problem: Here is a premise:
We have seen, however, that population density is not the only explanation for fixed cost differences.

Here is a hypothesis:
Population density and income per capita are some of the explanations for fixed cost differences

Here are the options:

Answer: it is not possible to tell

Problem: Here is a premise:
You can take an evening cruise to watch this fascinating phenomenon and dip a hand in the water to make it happen yourself.

Here is a hypothesis:
Cruises in the evening have an educational segment, explaining the unusual effect

Here are the options:

Answer:
it is not possible to tell