Read this excerpt from "Edward Jenner and the History of Smallpox and Vaccination
The disease greatly affected the development of Western civilization.
Which evidence from the passage best supports this claim about smallpox?
Smallpox was introduced to Europe sometime between the fifth and seventh centuries.
The first stages of the decline of the Roman Empire (AD 108) coincided with a large-scale epidemic.
The Arab expansion, the Crusades, and the discovery of the West Indies all contributed to the spread of the disease.
Unknown in the New World, smallpox was introduced by the Spanish and Portuguese conquistadors.

Is the sentence “ironically, although approximately seventy-one percent of the earth is covered by water, thirty-three percent of its land area is desert.” a phrase or a clause?

In marigolds, which character can be described as having a laugh so loud that the great oak seemed to laugh with it?

Which line in this excerpt from the great gatsby by f. scott fitzgerald contains a simile? about half way between west egg and new york the motor-road hastily joins the railroad and runs beside it for a quarter of a mile, so as to shrink away from a certain desolate area of land. this is a valley of ashes—a fantastic farm where ashes grow like wheat into ridges and hills and grotesque gardens where ashes take the forms of houses and chimneys and rising smoke and finally, with a transcendent effort, of men who move dimly and already crumbling through the powdery air. occasionally a line of grey cars crawls along an invisible track, gives out a ghastly creak and comes to rest, and immediately the ash-grey men swarm up with leaden spades and stir up an impenetrable cloud which screens their obscure operations from your sight.