Substances that have a ph of less than 7 are acidic for each ph unit lower the acidity is 10 times greater for example normal precipitation a slightly acidic add a 5.6 ph
if acid precipitation were measured at 4.6 ph it would be 10 times more acidic than normal precipitation how many times more acidic would precipitation at 3.6 ph be than normal precipitation ?

What term is given to the border between the central alps and the southern limestone alps?

What is likely to happen in the long term if the earth continues to absorb more energy than it emits? a. the earth will discontinue recycling energy. b. organisms will begin to compensate for the change by incorporating more energy. c. the overall temperature of the earth will increase. d. the nutrient cycles will happen more frequently. select the best answer from the choices provided a b c d

Adepression on the surface of the land caused by the collapse of a cave roof is a blank. a) valley b) sinkhole c) mound