A volcano releases a towering plume of toxic ash and gases into the atmosphere. Which of these would best allow scientists to warn officials of a need for evacuation of
people living far away from the volcano?
A. a careful count of the number of people living near the volcano
B. an estimate of the number of gas masks available for emergency personnel
C. an accurate measurement of the height of the volcano
D. computer modeling of movement of the atmosphere

I am going to say answer D but plz forgive me if i am wrong

Explanation:

•there must be variation for the particular trait within a population.

•the variation must be inheritable (that is, it must be capable of being passed on from the parents to their offspring).

•individuals with one version of the trait must produce more offspring than those with a different version of the trait.good

explanation:

the supermassive black hole is in the middle of the galaxy.