While an object near the earth's surface is in free fall, its
a) velocity increases.
b) acceleration increases.
c) mass increases.
d) mass decreases.

hello, i am papaguy.

i have found an answer to your question but use it as information.

information: because weak acids/bases have low concentration of hydrogen ions, the addition of water has a large impact on the ph. 2. a difference in 1 unit is a 10x difference in concentration for example; a liquid with ph of 3 is 10x more acidic than a liquid with a ph of 4. therefore, a liquid with a ph of 3 is stronger.

best of luck!

365.25 earth days are in the year of a light year