How are semicolons, colons, and hyphens the same? How do they differ?

Semicolons, colons and hyphens are all used in a text to give structure and joint words together/bring connections. For example, when listing things off or giving an example, it's appropriate to use a colon. These all differ because they must be used in certain contexts and using the wrong symbol will often confuse the reader.

halibut, flounder, tuna, and trout are all fish. so your first answer is 1.) fish. and since fish is edible, your next answer would be 3). edible

to describe those fishes more thoroughly, some of those fishes live in fresh water, and some of the fishes live in salt water, and that is not a thing that they all have in common. the question is asking what is common with all of the fish, so answer choices 2). fresh water and 4). salt water are not right.