I believe the answer would be D because when they collide they move the Earth
A.) The sewers cannot handle the volume of waste from street runoff...
1.Fish gills are organs that allow fish to breathe underwater. Most fish exchange gases like oxygen and carbon dioxide using gills either on side of the pharynx.
2.Gills are branching organs located on the side of fish heads that have many, many small blood vessels called capillaries.
3.The colour is red
4. A Gill filaments project from each arc between the dorsal upper and ventral lower surfaces of the filaments.
The myelin sheath is the layer of fat cells that insulates most axons and speeds up the transmission of nerve impulses.
I’ll give you some key points and after that you should be fine, tide, swept underneath and over, density differences and climate change
