It explains the origin of echoes.
The following sentence is punctuated properly: "I need to know whether you are able to perform the following functions of the job: revising existing marketing materials, promoting the company at trade shows, and reaching potential customers through direct mail campaigns." (3).
There should be a colon after the first clause because the second part of the sentence is a list of items (in this case, a list of the "functions of the job").
A comma would be too weak in this case because it would fail to express this idea of a list of specific examples completing the independent clause.
A semicolon would be inaccurate because they are usually used between two independent clauses when you don't want to link them with a conjunction (like <em>and</em>). They are stronger than a comma and weaker than a period. In this sentence however, the second part is not an independent clause but a list without a verb.
Answer:
John Adams, Benjamin Franklin, Alexander Hamilton, John Jay, Thomas Jefferson, James Madison, and George Washington.
Explanation:
Your welcome
Answer:
water and oil don't mix
they form an emulsion
oil is less dense then water
Explanation:
Since there are no given answers, let's examine all pieces of information we can find here.
After mixing two liquids, Janet shook this mixture. She did it in order to enhance the rate of dissolving. After some time passed, we see that these liquids are separated into two distinct layers, meaning that water and oil do not mix (oil doesn't dissolve in water). This also means that water and oil form an emulsion - an unmixable suspension of two liquids.
Another feature we can observe is that the oil had risen to the top. Denser liquid will always fall down, meaning that oil is less dense then water.
