Anita and sam attend a beach party and notice that the local beach appears to have a great deal more trash washed up on shore than it did when they were young. th

The answer to your question is,

They can talk to a local environmental group about solutions.

-Mabel <3

answer; i believe the correct answer is (4) flip a coin as each participant arrives,heads indicates assignment to the first group: tails indicates assignment to the second group;

answer; earthquake;