What happens due to coral reef damage by el niño? a. the ocean water gets warmer. b. fish that depend on the reef die. c. the ocean water gets cooler. d. the reef supports more diversity of life.

explanation:

yes you are doing it right great gob

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.