A) Between 1990 and 2000 the global economy grew more than it did during the 10,000 years from the beginning of agriculture

-Correct choice.
Growth of Global economy in 1990 is correctly compared to Growth of economy during 10,000 years .
Than it did Corretly refers to growth during 10,000 years.

(B) Between 1990 and 2000 the growth of the global economy was more than that during 10,000 years, from when agriculture began
-Growth is compared to global economy.

(C) The growth of the global economy between 1990 and 2000 exceeds that which had been for 10,000 years from the beginning of agriculture

-Changes the meaning by using past perfect tense

(D) The growth of the global economy between 1990 and 2000 exceeds what it has been for 10,000 years, from when agriculture began

-IT has been indicates that continues to present to..changes the meaning of sentence

(E) The growth of the global economy between 1990 and 2000 exceeded what it did for the 10,000 years from the beginning of argiculture

-What it did
Incorrect

getso wrote:A) Between 1990 and 2000 the global economy grew more than it did during the 10,000 years from the beginning of agriculture

-Correct choice.
Growth of Global economy in 1990 is correctly compared to Growth of economy during 10,000 years .
Than it did Corretly refers to growth during 10,000 years.

(B) Between 1990 and 2000 the growth of the global economy was more than that during 10,000 years, from when agriculture began
-Growth is compared to global economy.

(C) The growth of the global economy between 1990 and 2000 exceeds that which had been for 10,000 years from the beginning of agriculture

-Changes the meaning by using past perfect tense

(D) The growth of the global economy between 1990 and 2000 exceeds what it has been for 10,000 years, from when agriculture began

-IT has been indicates that continues to present to..changes the meaning of sentence

(E) The growth of the global economy between 1990 and 2000 exceeded what it did for the 10,000 years from the beginning of argiculture

-What it did
Incorrect

(E), in hindsight, is very nonsensical: The growth of the economy exceeded what the growth exceeded in the past 10,000 years. The subject is "global economy", so (C) - (E) are out off the bat.

(B) also uses "the growth" as subject, but I'm not sure why it's wrong. How is "growth" is compared to global economy...I would think "that" would refer to "growth of the global economy". In that case, you'd get "growth of global economy was more than growth of global economy in past 10,000 years"

Confused ...
How does 'it' in A refer to growth?

gmatv09 wrote:Confused ...
How does 'it' in A refer to growth?

"It" doesn't refer to growth; it refers to "the global economy". Plug it in for "it".

Between 1990 and 2000 the global economy grew more than the global economy did during the 10,000 years from the beginning of agriculture

the golden rule is "check grammar before meaning"

check grammar

exceedS is wrong in C, and D

"during 1000 years" is wrong. "during" is used before a period, not a number. during the age, for 1000
B is out. B is more paralel

check meaning

"what it did" means "what it exceeds".no logic. E is out

I do not know "from when" is wrong or not. "since" is better than "from when". PLS HELP

Answer : A

Others change the meaning of the sentence/grammatically incorrect

I know, from <when agriculture began> to 1950 is the correct idiom.
If it were "since X to Y", would it be correct? Or is it "Since X till Y"?

Actually, I am also confused between usage of IT vs THAT. Can anybody help?

nirmalp wrote:I know, from <when agriculture began> to 1950 is the correct idiom.
If it were "since X to Y", would it be correct? Or is it "Since X till Y"?

Actually, I am also confused between usage of IT vs THAT. Can anybody help?

IT is a personal pronoun, while THAT is a demonstrative pronoun.

I hit the ball, and IT bounced against the wall. ("It" standing in for "the ball" - personal pronoun)

I hit THAT ball, and IT bounced against the wall. ("That" telling us which ball was hit)

Basically, whenever you see "that", you should expect a modifier. Either "that" itself is doing the modifying (i.e. telling us which item the sentence is referring to), or it introduces an essential modifier.

He indicated that he was ready for the pitch.

"that" is introducing an essential modifier to describe "indicated".

Hope that clears things up a little.