Which part of earth is solid and extremely hot? a. inner core b. outer core c. mantle d. crust

The right answer is indeed A. inner core.

Explanation:

The Earth's structure can be divided into four parts: crust, mantle, outer core, and inner core. The crust is the outermost layer, having an average depth of 30km when it comes to continental crusts, and 5km for oceanic crusts. The mantle lies beneath the crust and presents a depth of 2,900km. It is constituted of hot rock, between 900 and 2,200 degrees Celsius. Next we have the outer core, consisting or liquid metal - nickel and iron - due to the extreme temperatures ranging from 2,200 and 5,000 degrees Celsius. Finally, beneath the outer core we have the inner core. Even though the temperature is extremely high - 5,000 degrees Celsius -, the inner core is solid due to the high pressure it is under, which is 3 million times higher than on the crust.

what: when quoting a source, use the author’s words verbatim, or word-for-word. this means you shouldn’t change any grammar, punctuation, spelling, etc. put quotations around the words to tell your reader where the quote begins and where it ends.

you also need to acknowledge the author. for example, if using mla format for your research paper, you should have in-text citations with the author’s name and page number listed at the end of each quote.

when: use quotations to provide concrete examples to support your claims. using direct quotations is a great way to build your credibility on the subject. it’s also a good idea to quote your source when the author states things in a powerful way. if you think he or she said it best, then use the exact words to share the ideas.

example: in the short story “a jury of her peers”, mrs. hale compares mrs. wright to her caged bird, saying “she—come to think of it, she was kind of like a bird herself. real sweet and pretty, but kind of timid and—fluttery. how—she—did—change” (glaspell).

paraphrasing

what: paraphrasing differs from quoting because you restate the passage in your own words. since you don’t use the author’s words, you don’t need to use quotation marks. however, you still need to acknowledge the author for his or her ideas.

when paraphrasing a text, you should communicate the full meaning of the text; don’t change the meaning. it can be a condensed version of the text, or it could end up being longer than the source it’s paraphrasing.

when: you use paraphrasing when you take notes, or explain a chart or diagram to someone. paraphrasing highlight the important parts of a larger text. it also allows you to simplify the ideas for your readers.

example:

original: “it was no ordinary thing that called her away–it was probably further from ordinary than anything that had ever happened in dickson county. but what her eye took in was that her kitchen was in no shape for leaving: her bread all ready for mixing, half the flour sifted and half unsifted” (glaspell).

paraphrase: as mrs. hales walks around mrs. wright’s home, she notices that the kitchen is in disarray as if she was in the middle of baking bread (glaspell).