What are two characteristics that indicate fin fish has been cooked to the proper degree of doneness?

Opaque color. When you start cooking fish it's rather shiny and translucent. When it's done, fish will be opaque.

Flake easily with a fork. When you flake fish with a fork (more on that next) that's properly cooked, it'll easily flake apart.

Explanation:

the answer is true : 0)

i think it's but if you get it wrong its not my fault : )