For hundreds of years, people have been using the Chinese invention called the compass.1 People use a compass to find the right direction at sea. A compass uses the pull of a magnet to show which direction is north and which is south. But it does not use a small magnet; it uses the Earth itself. The Earth functions like a magnet, and like all magnets it has a north pole and a south pole. A compass uses a magnetized needle. The north pole of the compass needle is pulled toward the south pole of Earth, while its south pole is pulled towards the Earth's North Pole.2 So the compass needle always points north-south. 1. Patrick Bentley, Foundation of the Earth (New York: Penguin Random House, 1985), 183.

2. Karen McGill and Jeffrey Adams, "Magnets," The Foundation of Natural Sciences, last modified 12 July 2011, Harry is working on a report about the various uses of magnets. He adds footnotes to show which sources he used to do his research. According to the second footnote notation, what kind of source has Harry used?
A.
a short story
B.
an interview
C.
an encyclopedia
D.
a web page

Select the correct text in the passage. which set of lines spoken by sebastian in act v, scene i, of twelfth night implies that olivia is not attracted to him simply because she is crazy? sebastian: this is the air; that is the glorious sun; this pearl she gave me, i do feel't and see't: and though 'tis wonder that enwraps me thus, yet 'tis not madness. where's antonio, then? i could not find him at the elephant; yet there he was; and there i found this credit, that he did range the town to seek me out. his counsel now might do me golden service; for though my soul disputes well with my sense, that this may be some error, but no madness, yet doth this accident and flood of fortune so far exceed all instance, all discourse, that i am ready to distrust mine eyes and wrangle with my reason, that persuades me to any other trust but that i am mad, or else the lady's mad; yet if 'twere so, she could not sway her house, command her followers, take and give back affairs and their despatch with such a smooth, discreet, and stable bearing, as i perceive she does: there's something in't that is deceivable. but here comes the lady.

What are the benefits of secondary source

Read and key the following paragraph. 1"the final phase of franklin's public service is themost spectacular. 2after his return to america he waselected to the second continental congress and served withjefferson and john adams on the committee which drafted thedeclaration of independence. 3then, in 1776, he wasappointed one of the three commissioners to seek military andnaval assistance from france. 4for nearly ten years pariswas his center of operations, and, in large part because ofhis personal popularity, he secured the much-needed supportof france and spain and eventually negotiate thetreaty of paris (1783), by which england recognized americanindependence. 5when he returned to america in 1785 he wasold and ill, yet he found strength to serve as a delegate tothe constitutional convention, and to continue his work withmany humanitarian and scientific societies." type the key words for sentence's 2. 3. 4. 5.