Answer:
The sense of hearing, provided by the ears, is much more than just being able to hear sounds around us. This sense also provides us with the possibility to interact with our environment, move in our environment and survive. How? Because the ear will not only provide us with a structure like a satellite that collects sounds, but it will also become vital for location, for a sense of our surroundings, and for learning what is near, or far, whether something is dangerous, or not, how we are positioned in relation to other bodies and structures, among many other things.
In survival, the sense of hearing, and especially the ability to use sounds as a way to locate ourselves, and locate others, as well as understand the source, quality, and characteristics of a sound, provides humans, and all other animals, with the capacity to interpret their environment and act accordingly, depending on their needs.
Localization then, through sounds, will give us a lot of information about other beings producing the sounds that will allow us to act as needed, and thus ensure our survival as we know when something sounds dangerous, locate where approximately the sound is coming from in relation to our own bodies, and thus produce the necessary responses to survive.
