Answer:
The mechanisms used to produce sound vary from one family of cetaceans to another. Marine mammals, such as whales, dolphins, and porpoises, are much more dependent on sound for communication and sensation than are land mammals, because other senses are of limited effectiveness in water. Sight is less effective for marine mammals because of the particulate way in which the ocean scatters light. Smell is also limited, as molecules diffuse more slowly in water than in air, which makes smelling less effective. However, the speed of sound is roughly four times greater in water than in the atmosphere at sea level. As sea mammals are so dependent on hearing to communicate and feed, environmentalists and cetologists are concerned that they are being harmed by the increased ambient noise in the world's oceans caused by ships, sonar and marine seismic surveys.[2]
Answer:
To analyze the arguments in the text
Others who have read the text
Explanation:
I just did it
Answer: I believe because there are no natural enemies
Explanation:
This is because they’re invasive
Ok so what happened was her cousin Mary was sitting by Mr.Oakley who was trying to engage her thoughts.Cause Mary had a swollen leg from her foot that had fallen into he fire at camp.Hopefully that helped you out!
Answer:
<h3>ball pen ,,,,,,,,,,,,,,,,,,,</h3>
