Dr. tyrone hayes conducted research that concluded that the use atrazine caused this mutation in frogs:
a.) missing limbs b.) liver malfunction c.) two heads d.) reproductive organs of both sexes

Seawater contains approximately 3.5%nacl by mass and has a density of 1.02 g/ml. what volume of seawater contains 7.5 g of sodium?

The name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion

Transportation is the largest single source of air pollution in the united states. air pollution can harm the environment and human health. which technology could offer a solution to this problem? mufflers that reduce noise motors that run on electricity tires that improve gas mileage