Plzz will brainliest if answer is correct and 15 points
by which process does cold, nutrient-rich water replace warm, nutrient-poor, surface water?

a)convection

b)upwelling

c)downwelling

d)radiation

Easy 6th grade work! 100 points! i need fast! compare the parts of a cell and the cell as a whole to another common nonliving system (i.e., a car, a city, describe the parts of a cell and their primary function.