Which of the following statements is true?
a) all the populations in an ecosystem form the community.
b) a habitat represents all the biotic factors in an ecosystem.
c) the amount of nutrients in soil is an example of a biotic factor.
d) only one population can live in a habitat at a time.

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.

hope it mark me as brainlieast.