Which characteristics best identify differences between intrusive and extrusive rocks? check all that apply.

color
shape
texture
location
crystal size

It is crystal size that best identify intrusive and extrusive. Intrusive have large crystals and extrusive have medium size crystals

Explanation:

Intrusive rocks are cooled for magma, buried under the surface, this phenomenon creates larger crystal inside. On the other hand, extrusive rock are cooled from lava rapidly because they are located on the surface, this creates smaller crystals inside.

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.