What does a water animal need great amounts of to survive?
Au sodium oxygen gills water warmth Fe H
A B C D E F G H
Clean water is also essential to aquatic life.
A water animal requires great amounts of water to survive.
What does a water animal need great amounts of to survive? (A) Au (B) sodium (C) oxygen (D) gills (E) water (F) warmth (G) Fe (H) H