Can i have any ideas for my science project plz

You encounter a solution that is acidic and you decide to test it by adding a small amount of a strong acid. the ph lowers slightly but is approximately unchanged, and still remains acidic. what can you say about the solution? a. it is a buffer solution. b. it is not a buffer solution it is a strong acid solution. d. the solution has been neutralized. e. the solution has excess acid present

Draw a line graph showing the relationship between temperature in kelvin as a function of kinetic energy.

Is this correct if not can u correct me