Can someone help me out thank you :)

Ausable water source is one that can be used by humans for drinking or agriculture. identify the water reservoirs as usable or unusable based on their current state. oceans rivers glaciers freshwater lakes groundwater

Ineed some everybody. the production of cells during mitosis into specialized function is called: recombination or differentiation

Which element forms the basis of all organic organisms a carbon b oxygen c hydrogen d nitrogen