Which combination of sex chromosomes results in a male human being? either xx or yy only yy only xy only xx

Which of these properties, used alone, would be least useful in identifying most minerals? a. color b. luster c. streak d. density

28. which is not a reason that water is used to store spent fuel rods from nuclear power plants? water increases the speed of the chain reaction in the fuel rods. water protects nuclear power plant workers from the high temperature and radiation of the fuel rods. water acts as a radiation shield to reduce the radiation levels. water cools the spent rods. salts action

Condensation happens when water vapor cools. true or false? ?