1) Pollution _________________ the fish, disrupting their underwater signals. a) wiped out b) brought about c) picked up d) pointed out 2) By using specialized equipment, the scientists were able to _____________ the faint underwater signals that whales use to communicate over vast distances. a) point out b) make out c) bring about d) wipe out 3) The documentary __________________ how elephants use infrasound to communicate over long distances, signaling danger or reunion. a) picked up b) brought about c) made out d) pointed out 4) The wolves' body language __________________ peace among the pack. a) brought about b) wiped out c) picked up d) made out 5) Elephants ___________________ vibrations to communicate across long distances. a) pick up b) bring out c) point out d) wipe out

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