Which of these is a correct statement about pH? The pH of a solution increases as its acidity increases.
O The pH of a basic or alkaline solution is less than that of an acidic solution.
O As the concentration of H increases in a solution, the pH decreases.
O A solution to which HCl has been added will have a greater pH than a solution
to which NaOH has been added.
O Each number on the pH scale represents an increase of 108.
Question 3

your correct answer is 3 ok

the answer is; comparing the frequency of collisions with and without the device

this makes the anti-collision system an independent variable and the collisions a dependent variable. if there are fewer collisions with an anti-collision system that without, then it can be stated that the system is a success. essentially, collisions under an anti-collision system are compared with the frequency of collisions by cars with the human drivers.

•there must be variation for the particular trait within a population.

•the variation must be inheritable (that is, it must be capable of being passed on from the parents to their offspring).

•individuals with one version of the trait must produce more offspring than those with a different version of the trait.good

explanation: