Describe how the interaction of matter and light affects what uou see when you look at a wondow a lake and a tree

Ab c or d ? i’m not sure what the answer is

You wish to prepare a buffer consisting of acetic acid and sodium acetate with a total acetic acetate plus acetate concentration of 250 mm and a ph of 5. what concentrations of acetic acid and sodium acetate should you use

Sand is more likely than shale to preserve fossils. true false