Question

Dolphins communicate by making _________.

• A. sounds underwater
• B. high pitched sounds
• C. alarming calls
• D. electrical signals

Answer 1

The correct option is A sounds underwater

• Dolphins communicate with each other by making sounds underwater.​​
• Langurs can give warning calls to other animals and alert them about predators nearby.​​
• Birds make high pitched sounds and fly away when there's a predator nearby.​​
• Fishes can warn each other by releasing chemicals into the water and electric signals.​