Explain the difference between gills and lungs give examples of animals that only have lungs and animal that have both gills and lungs. What are the advantages of having gills, having lungs, and having both

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.

the contamination

we are putting to many trash.