Nitrogen-fixing bacteria convert atmospheric nitrogen into forms of nitrogen that living things can use. select the best answer from the choices provided
a. true
b. false

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.

well the answer is 2!