Question

why does a fish open its mouth many times in water​

Answer 1

Fish opens its mouth many a time to release the carbon dioxide in the water with a quick rate.

hope it will help you, marrk as BRAINLIEST answer

Answer 2

Answer:

Fishes open and close its mouth in water for breathing.

In this way they pass the water to the gills for the absorption of dissolved oxygen in the water and give out carbon dioxide.

Hope it helpzz..