Which is not a model according to the scientific definition? a. a map of the world b. a light-powered microscope c. a drawing of an atom d. an explanation of how clouds form

Ryan rears sheep for their wool. recently the quantity of wool that ryan gets has diminished. this is because the new sheep are not that wooly. ryan should add which nutrient to their feed so that the sheep becomes more wooly? a.cornb.ironc.cottonseedd. vitamin a

The bacteria found in soil is usually harmful and measures are taken to remove any traces of microorganisms. true or false

Can someone i have no idea of how to do this.