Galilea D. 2A
Dolphins use sound, or echolocation, to communicate and navigate in the waters. Noise pollution affects how dolphins communicate and can make them feel scared.
Loud underwater seismic searches or surveys (pulses of noise sent down to the seabed) to locate oil and gas
Military exercises using powerful underwater sonar
Increasing levels of boat activity
Sources of toxins that harm dolphins include
Polluted runoff water