For millennia, the Nile River flooded nearly every year as a natural consequence of heavy summer rains on the Ethiopian Plateau; in the last century, as the population in the region exploded, the cycle of flooding interspersed with periodic drought caused widespread suffering for the local populatio...

Despite its 1989 designation as a threatened species under the federal Endangered Species Act, the desert tortoise, Gopherus agassizii, has declined in numbers by ninety percent since the 1980s. Although federal protection made it illegal to harm desert tortoises or remove them from the wild of the ...

Hi Manhattan staff,

Could anyone of you please respond?

Regards,
prepgmat09

Hi Manhattan staff,

Could anyone of you please respond?

Regards,
prepgmat09

Thanks, Stacey.

Very useful explanation, Stacey. Thanks so much!

I have seen several experts mention that whenever one sees "comma + and" on GMAT SC, one should always check that the parts of sentence before and after the "comma + and" are independent clauses. However, this is one sentence that violates this rule, because "comma + and&quo...

Hi Ron/Stacey, Isn't there also a meaning issue with C? The original sentence tries to convey a meaning that "one-fourth of the stores have demonstrated poor sales and those stores would be closed". Choice C tends to state that "one-fourth of the stores would be closed because the com...

Hi Ron, Regarding the elliptical construction question above, can we not think of "they know" as omitted in the original choice. In that case, A would read: To develop more accurate population forecasts, demographers have to know a great deal more than (they know) now about the social and ...

I have a doubt related to this question. The stimulus mentions, " Thus , many American companies themselves purchase private aircraft." This means that the companies purchase private aircraft because of the law. Otherwise, they wouldn't have purchased. And this shows that not buying an air...

I am a non-native English speaker. I have a doubt regarding the logical meaning expressed in choice E. Isn't it illogical to say "Beethoven lies buried near the graves of Schubert and Brahms". Beetohoven is no more. It is "his final resting place" (as mentioned in choice C) that ...

posters -- this problem has been posted in violation of the forum rules; it has been posted with only two of the five answer choices. please post the problem with all five of the answer choices, per the forum rules; once this has been done, we will proceed to answer the questions that have been pos...

Glad to report that I wrote my GMAT recently and scored a 770(Q51, V42). I must have gone through over 150 SC explanations and several CR explanations by Ron on Manhattan GMAT forum. I also saw some recordings from "Thursdays with Ron". Every explanation and lecture by Ron is simply amazin...