Answer:
to restore or improve something
Explanation:
1) Well, models are vital to use by scientists, because that way they can represent visually and help other people understand the point they are trying to stress about their project. A simple example would be to use a Bohr model to represent a specific chemical, and along with that show how many protons or neutrons does it have.
2)In science a universal law is a statement by which a particular action or a phenomenon would occur ALWAYS in the same way, and will ALWAYS abide to what the law states, while a theory is a guess on what kind of pattern does a particular phenomenon or experiment abide by.
3)The SI units are units of the metric system, and are used everywhere in the world for specific measurements, the kilograms is used when measuring mass, the meters is used when measuring length, the liter is used when measuring a volume of a liquid, and finally the cubic meters or m3 are used when measuring the volume of a solid. and those are the standards as well.
Explanation:
That's hard. I don't know
B) The plans for the walk were coming together, and José and the other committee members waited with anticipation.
This sentence would be the best ending for this paragraph. The paragraph is all about the preparations for the walk-a-thon. This sentence best summarizes these efforts when it states "The plans for the walk were coming together". It also hints at what is to come when it talks about the anticipation Jose and his team were feeling. Option A only talks about Jose's feeling and does not provide a big enough connection to the rest of the events in the paragraph. Options C and D continue to talk about the plans made, but does not conclude or summarize anything. The ending of a paragraph should offer some conclusion of ideas.
The correct answer is B. Replace the comma after persists with a colon.
Explanation
A colon (:) is a punctuation mark represented by one period above another. Its main function is to stop the speech to draw the reader's attention to what is next in the text. Its most common uses are in the explanatory enumeration and the introduction of quotes or verbatim words.
According to the above, it can be inferred that the correct answer is B because in the sentence "According to Stonehill, a primitive standard of attractiveness persists, "Some researchers have ..." " the author is adding a quote and it would be appropriate to replace the comma after persists with a colon.
