What percentage of stars do kepler scientists suggest host earth size planets? A. 15.9%
B. 2.6%
C. 10.2%
D. 5.4%

this is poiselle's equation from fluid mechanic in physics. mech eng

i don't understand. explain it clearly

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.