Why are hot gas clouds more dangerous than lava flow from a volcanic eruption?
a. Hot gas clouds travel at a much faster speed than lava.
b. Hot gas clouds are hotter than lava.
c. Hot gas clouds are more dense than lava.
d. Hot gas clouds absorb all of the oxygen in the air.

No because a circle or pie graph usually shows percentages you'd need a line graph

Answertraveling around a circular trackexplanation"traveling around a circular track" is the best answer as you could be traveling around a circular track at a constant speed. your velocity would therefore have the same magnitude but will always be constantly direction. since acceleration is the rate of change of velocity, the rate of change will only involve the direction of velocity and not the magnitude.wrong choices: "an object at rest" does not accelerate at all"increasing speed while traveling around a curve" means that the acceleration will not be constant due to only change in direction; it will be constant due to both magnitude and direction"an object in free fall" does not necessarily change direction 

Ithink the answer is fusion