Coral reefs are ecosystems in which there is a high amount of biodiversity. The existence of so many different plant and animal species allows a coral reef to — A. relocate to a new area after it has suffered a mild degree of pollution.
B. destroy itself after it has suffered a mild degree of pollution.
C. expand its size after it has suffered a mild degree of pollution.
D. rebuild itself after it has suffered a mild degree of pollution.

Compare the valence electron configuration of the nobles gas elements seen here. what statement is correct?

Plz mark brainliest 30 points1) find the momentum of a 12 kg snowball that is rolling with a velocity of 9 m/s.2) an 8 ball with a mass of .5 kg is sitting at rest. it is hit by the cue ball (1 kg) traveling at 2.5 m/s. if the cue ball is at rest after the collision, how fast is the 8 ball traveling after the collision? 3) two football players are running toward each other. if the offensive player is 75 kg and is running 8 m/s, how fast must the 60 kg defensive player run in order for the two players to hit and stop?

What happens to isotopes that are unstable?