Why do pine trees have shallow root​

Pine trees + shallow soil = no depth for stability

Explanation:

Pines, notably Ponderosa pines, tend to have a deep tap root with a much shallower (12″ inches or shallower from the ground surface level) root system. The shallower roots follow cracks and water spots for the pine to quench its

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.

i don't know. if i were you, i would search it up online : d