What are five reasons Twain gives for the fish tasting so good to the boys?

The scene is rather brief. The boys had caught a,

“handsome bass, a couple of sun-perch and a small catfish -- provisions enough for quite a family. They fried the fish with the bacon, and were astonished; for no fish had ever seemed so delicious before. They did not know that the quicker a fresh-water fish is on the fire after he is caught the better he is; and they reflected little upon what a sauce open-air sleeping, open-air exercise, bathing, and a large ingredient of hunger make, too.”

We can surmise that:

They were really hungry

They caught it themselves

Had bacon with it

Cooked it right after catching it

The outdoors made it taste that much better.

Hope that helps!