sponges breathe by when they suck in water. Tiny microscopic shrimp come to them and they eat it. that’s how they get food
What are they used for?
Sponges are mostly used for cleaning supplies and padding for your helmets. Mostly not used anymore because of factory’s making processed sponges real sponges are not used that much anymore. I can still find them in stores and other places
I learned so much about sponges I learned that sponges can breathe and eat by pulling the water from the ocean. I also learned that sponges are used for cleaning supplies and helmet padding. I like sponges they’re super cool