Read the excerpt from chapter 8 of The Travels of Marco Polo. They have sheep here that have no ears, nor even ear-holes; but in the place where ears ought to be they have little horns. They are small creatures and very pretty. And here is something else that may strike you as marvelous: their domestic animals—sheep, oxen, camels, and little ponies—are fed on fish. They are reduced to this diet because in all this country and in all the surrounding regions there is no grass; but it is the driest place in the world. The fish on which these animals feed are very small and are caught in March, April, and May in quantities that are truly amazing. They are then dried and stored in the houses and given to the animals as food throughout the year. I can tell you further that the animals also eat them alive, as soon as they are drawn out of the water.
Why does the author include information about the dry climate?
to explain why the sheep have horns but no ears
to explain why the sheep in the region are so small
to explain why people in the region have to feed their animals fish
to explain why there are such large quantities of fish available

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Explanation:

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it is important so later on in life they . can solve issues like that or other tough times in their life.. and also have info on those topics.

they can talk about topics like that by sitting the person down and talking with them.

explanation:

it was surely an odd creature that one made up by reading the historians first and the poets afterwards a worm winged like an eagle; the spirit of life and elegance and charm,   in a kitchen chopping up suet. but these creatures, monst'r however entertaining to the imagination, hast no existence in fact. what one might doth to bringeth h'r to life wast to bethink poetically and prosaically at one and the same moment,   thus keeping in toucheth with fact—that the lady is mrs martin, ag'd thirty-six, did dress in blue, wearing a black coxcomb and brown shoeth; but not losing sight of fiction eith'r—that the lady is a vessel in which all s'rts of spirits and f'rces art coursing and flashing p'rpetually. the moment, howev'r, yond one tries this method with the elizabethan mistress, one brancheth of illumination fails; one is did hold up by the scarcity of facts.   one knoweth nothing detailed, nothing p'rfectly true and substantial about h'r.   hist'ry scarcely mentions h'r.   and i did turn to professeth'r trevelyan again to seeth what hist'ry meanteth to that gent.   i hath found by looking at his chapt'r headings yond t meanteth.