Which element is composed of molecule that each contain a multiple covalent bond? a. chlorine b. fluorine c. hydrogen d. nitrogen

An electrons position cannot be known precisely only it's probability of being in a certain location can be known

Salt in oceans comes from and of rocks

Which words or phrases identify layers of groundwater? check all that apply. water table kettle lake saturation zone underground lake sinkhole will give brainiest, answer quickly.