Ascientist discovers a deep bowl-like divot under the ocean off the coast of eastern mexico that is many kilometers across. the layers of the ground all around the continent from around the time that structure formed contain large amounts of iridium and a larger number of fossils than is normally found. what most likely caused the bowl-like structure?

a meteorite impact
an asteroid impact
an iridium spike
a kuiper object impact

(B) an asteroid impact

Explanation:

an asteroid impact

Explanation:

Iridium is rare on Earth. Whenever there is a collision with a space rock, concentration of iridium increases in the area of collision. There could be meteorite or asteroid impact but meteorites are smaller in size. Most likely it would be an asteroid impact to cause a mass extinction ( as larger number of fossils were found) and deep bowl like structure formation.

Thus, correct option is an asteroid impact.

electric field is a function of 1/r^2

yes, the force per unit charge for a point charge is inverse square law.