Which statement best describes saturation?
a. saturation refers to the total rainfall for a year.
b. saturation refers to the lack of rainfall on a given day.
c. saturation occurs only in hot, dry climates.
d. saturation is reached when the amount of water vapor in the air has reached the maximum amount.

12. calculate the hydroxide ion concentration of a solution with ph = 3.25. show all calculations leading to an answer

To find the work done, the force exerted and distance moved are multiplied. a couch is moved twice before you are happy with its placement. the same force was used to move the couch both times. if more work is done the first time it is moved, what do you know about the distance it was moved? a) when more work was done, the couch was moved the same distance. b) when more work was done, the couch was moved less. c) when more work was done, the couch was moved further. d) when more work was done, the couch wasn't moved at all.

Can anyone answer these questions? ? i need it before 1: 00pm today