Which layer of the atmosphere do thunderstorms take place in?

Why do you think water is so important to living things

Galaxy whose shape seems different follow no set pattern are classified as

Hemoglobin is the compound in red blood cells that carries oxygen to the body. the distribution of hemoglobin in women in g/dl of blood is approximately normally distributed with mean 14 and standard deviation 1. too little hemoglobin, and you're anemic. 2. too much, and (unless you live at high altitudes), you can have other problems.