The ability to navigate, hunt, and communicate by electric current in water most likely make up for the effect of dark, murky water on which sense?

The answer is a vision.

If fish live in a dark, murky water, that means that their sense of vision is affected. In dark, murky water they could not see anything. So, fish that lives in this kind of water developed the ability to o navigate, hunt, and communicate by electric current in water. This ability is known as electroreception. Among fish, electroreception is present in some sharks and rays, and electric eels

Gases enter the atmosphere and trap the sun's heat warning the earth.

Law of the conservation energy states that the energy can not be generated or destroyed, but the energy can be transformed from one form or another. the water stored has potential energy, as it flows the potential energy is transformed to kinetic energy.