Read the excerpt from Neil deGrasse Tyson's "Death by Black Hole."
be
Black holes are regions of space where the gravity is so high that the fabric of space and time has curved back on itself,
taking the exit doors with it. Another way to look at the dilemma: the speed required to escape a black hole is greater
than the speed of light itself. ... light travels at exactly 299,792,458 meters per second in a vacuum and is the fastest
stuff in the universe. If light cannot escape, then neither can you, which is why, of course, we call these things black
holes.
Which of the following features would best enhance the reader's understanding of this excerpt?
a photograph of a black hole
a demonstration of the speed of light
an interactive animation of a black hole
a definition of the term black hole
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Which of the following sentences below uses the simplest and clearest language? a. library cards are not too hard to get, but they aren't too easy to get either. b. some libraries have a lot of rules to follow for filling out the forms. c. library cards make it possible to read books all year long. d. once you get the application, you can figure it out.

While studying, lana reached her goal of reading half a chapter without interruptions. what should she do next?

In this excerpt from "a modest proposal" by jonathan swift, which important issue does the writer deal with using a satirical tone? some persons of a desponding spirit are in great concern about that vast number of poor people, who are aged, diseased, or maimed; and i have been desired to employ my thoughts what course may be taken, to ease the nation of so grievous an incumbrance. but i am not in the least pain upon that matter, because it is very well known, that they are every day dying, and rotting, by cold and famine, and filth, and vermin, as fast as can be reasonably expected. and as to the young labourers, they are now in almost as hopeful a condition. they cannot get work, and consequently pine away from want of nourishment, to a degree, that if at any time they are accidentally hired to common labour, they have not strength to perform it, and thus the country and themselves are happily delivered from the evils to come. a. old, sickly people cannot be hired as laborers because they don't have the physical stamina required for the job. b. old, sickly people and young laborers are useless to the nation because they cannot be productive citizens. c. the economy of the nation is burdened by the poor, the old, and the sickly who survive on charity and handouts. d. the living conditions of the poor and their lack of employment opportunities are serious concerns for the nation. reset next