Two semi trucks are both traveling down the highway at 70 mph the checks are identical except one is full and one is empty which truck has more kinetic energy and why

The full one.

Explanation: The reason the full truck has more kinetic energy is because there is more mass.

fire could start, buildings collapsing, and ash falling from the sky.

explanation:

this is because the buildings or plants could catch on fire and the buildings would most likely collapse. lastly ash would fall because all the burning would cause ash to fall from the sky.

hope this .

take a better picture and ill do it