Although mice, a cat's normal food, are about 70% water, and canned food about 78%, dry food is between 5%-10% water. That's why âcanned food does a much better job of keeping your cat well-hydrated,â Pierson tells WebMD. âThink of canned food as hosing down your cat's bladder several times a day.â.
The troposphere is the layer closest to the Earth. The <b>troposphere</b> is the layer closest to the Earth.
The lowest layer of Earth's atmosphere is called the troposphere, which begins at the surface and extends to an average altitude about 17 to 20 kilometers (55,000 to 65,000 fe â¦ et). 8 people found this useful.