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]
Lincoln's <em>Gettysburg Address</em> describes the bravery of Union soldiers where Lincoln speaks about the sacrifices of the soldiers and what it meant for the war during that time. He applies certain diction for the speech in order to make it more memorable.
In <em>Letter to His Son,</em> Robert Lee uses subjective style of writing because the author addresses to his own son and therefore the language is more personal. Like, Lincoln's speech, the letter also concerns the importance of the soldier's resistance for the fate of the Union.
The correct answer is D.
Here are guidelines on writing this informal letter:
- Write the date and address of your place on the right side of the letter.
- Greet your aunt on the llower right side of the letter.
- Start with the body of the letter where you ask of her welfare and inform her of the news. End with a conclusion.
- Sign off the letter at the lower right side.
<h3>What is an informal letter?</h3>
An informal letter is a form of letter that we address to people who are close to us. Friends and family fall into this category.
So when writing to your aunt to you need to follow the informal style of letter writing indicated above.
Learn more about informal letters here:
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Yeah tawau wjsbbsbsb sushi’s 1$383$2!2 wjsjsiaiajs d
