sunspot cycles

This topic has expert replies
Master | Next Rank: 500 Posts
Posts: 160
Joined: Fri Aug 22, 2008 4:54 am
Thanked: 5 times
GMAT Score:660

sunspot cycles

by crazy4gmat » Mon Dec 15, 2008 7:35 am
On Earth, among the surest indications of sunspot cycles are believed to be the rate that trees grow, as seen in the rings visible in the cross sections of their trunks.

A. On Earth, among the surest indications of sunspot cycles are believed to be the rate that trees grow
B. On Earth, among the surest indications of sunspot cycles are, it is believed, the rate of tree growth
C. On Earth, the rate at which trees grow is believed to be among the surest indications of sunspot cycles
D. Among the surest indications on Earth of sunspot cycles, believed to be the tree growth rate
E. Among the surest indications on Earth of sunspot cycles is believed to be the rate at which trees grow

OA E

Legendary Member
Posts: 940
Joined: Tue Aug 26, 2008 3:22 am
Thanked: 55 times
Followed by:1 members

Re: sunspot cycles

by iamcste » Mon Dec 15, 2008 8:26 am
crazy4gmat wrote:On Earth, among the surest indications of sunspot cycles are believed to be the rate that trees grow, as seen in the rings visible in the cross sections of their trunks.

A. On Earth, among the surest indications of sunspot cycles are believed to be the rate that trees grow
B. On Earth, among the surest indications of sunspot cycles are, it is believed, the rate of tree growth
C. On Earth, the rate at which trees grow is believed to be among the surest indications of sunspot cycles
D. Among the surest indications on Earth of sunspot cycles, believed to be the tree growth rate
E. Among the surest indications on Earth of sunspot cycles is believed to be the rate at which trees grow

OA E

"Their trunks "in not underlined part

so we need "Trees" close to "As seen..."

Only A and E qualify

A-puts all the essential info as a subordinate clause ", among...grow,"

If you try to remove to comprehrend the sentence removing this clause, sentence doesnt make any sense


Rate that grows-akward

Choose E

Senior | Next Rank: 100 Posts
Posts: 95
Joined: Fri Jun 20, 2008 4:03 pm

Re: sunspot cycles

by duke » Mon Dec 15, 2008 8:40 am
crazy4gmat wrote:On Earth, among the surest indications of sunspot cycles are believed to be the rate that trees grow, as seen in the rings visible in the cross sections of their trunks.

A. On Earth, among the surest indications of sunspot cycles are believed to be the rate that trees grow
B. On Earth, among the surest indications of sunspot cycles are, it is believed, the rate of tree growth
C. On Earth, the rate at which trees grow is believed to be among the surest indications of sunspot cycles
D. Among the surest indications on Earth of sunspot cycles, believed to be the tree growth rate
E. Among the surest indications on Earth of sunspot cycles is believed to be the rate at which trees grow

OA E
I guess the key to solve this q is to look at the back-side of the question..i.e. 'as seen ~'. What is 'seen' in the rings visible..? I guess it would be the rate. And what is believed to be the surest indication? I also think it's the rate. So, I would say the answer is C.
Looking for 780~

Legendary Member
Posts: 891
Joined: Sat Aug 16, 2008 4:21 am
Thanked: 27 times
Followed by:1 members
GMAT Score:660(

Re: sunspot cycles

by 4meonly » Mon Dec 15, 2008 9:29 am
iamcste wrote:
crazy4gmat wrote:On Earth, among the surest indications of sunspot cycles are believed to be the rate that trees grow, as seen in the rings visible in the cross sections of their trunks.

A. On Earth, among the surest indications of sunspot cycles are believed to be the rate that trees grow
B. On Earth, among the surest indications of sunspot cycles are, it is believed, the rate of tree growth
C. On Earth, the rate at which trees grow is believed to be among the surest indications of sunspot cycles
D. Among the surest indications on Earth of sunspot cycles, believed to be the tree growth rate
E. Among the surest indications on Earth of sunspot cycles is believed to be the rate at which trees grow

OA E

"Their trunks "in not underlined part

so we need "Trees" close to "As seen..."

Only A and E qualify

A-puts all the essential info as a subordinate clause ", among...grow,"

If you try to remove to comprehrend the sentence removing this clause, sentence doesnt make any sense


Rate that grows-akward

Choose E
Just ot add:
A uses rate...are
But we need rate...is

User avatar
Legendary Member
Posts: 2134
Joined: Mon Oct 20, 2008 11:26 pm
Thanked: 237 times
Followed by:25 members
GMAT Score:730

Re: sunspot cycles

by logitech » Mon Dec 15, 2008 9:31 am
duke wrote:
crazy4gmat wrote:On Earth, among the surest indications of sunspot cycles are believed to be the rate that trees grow, as seen in the rings visible in the cross sections of their trunks.

A. On Earth, among the surest indications of sunspot cycles are believed to be the rate that trees grow
B. On Earth, among the surest indications of sunspot cycles are, it is believed, the rate of tree growth
C. On Earth, the rate at which trees grow is believed to be among the surest indications of sunspot cycles
D. Among the surest indications on Earth of sunspot cycles, believed to be the tree growth rate
E. Among the surest indications on Earth of sunspot cycles is believed to be the rate at which trees grow

OA E
I guess the key to solve this q is to look at the back-side of the question..i.e. 'as seen ~'. What is 'seen' in the rings visible..? I guess it would be the rate. And what is believed to be the surest indication? I also think it's the rate. So, I would say the answer is C.
One for vote for C.

E. Among the surest indications on Earth of sunspot cycles is believed to be the rate at which trees grow

what does it mean ? Earth of sunspot cycles ?
LGTCH
---------------------
"DON'T LET ANYONE STEAL YOUR DREAM!"

Legendary Member
Posts: 891
Joined: Sat Aug 16, 2008 4:21 am
Thanked: 27 times
Followed by:1 members
GMAT Score:660(

by 4meonly » Mon Dec 15, 2008 9:36 am
Among the surest indications of sunspot cycles is believed to be the rate at which trees grow

Legendary Member
Posts: 708
Joined: Sun Jun 01, 2008 4:59 am
Location: USA
Thanked: 13 times
Followed by:1 members

by niraj_a » Mon Dec 15, 2008 9:51 am
E for me

the non-underlined part uses 'their', which means we need 'trees' not 'tree', and also that we need the word trees to be as close to the non-uderlined as possible.

E does that.

Legendary Member
Posts: 940
Joined: Tue Aug 26, 2008 3:22 am
Thanked: 55 times
Followed by:1 members

Re: sunspot cycles

by iamcste » Mon Dec 15, 2008 10:58 am
logitech wrote:
One for vote for C.

E. Among the surest indications on Earth of sunspot cycles is believed to be the rate at which trees grow

what does it mean ? Earth of sunspot cycles ?

what about information held in clause "rate....sunspot cycles"

Is it ok to keep this information non-restrictive?

User avatar
Legendary Member
Posts: 546
Joined: Sun Nov 16, 2008 11:00 pm
Location: New Delhi , India
Thanked: 13 times

by ronniecoleman » Tue Dec 16, 2008 12:26 am
oof~

It seems every day i need to rewrite my SC rules :x

. Among the surest indications on Earth of sunspot cycles
Don't know how can people justify this sentence...


https://www.manhattangmat.com/forums/on- ... t1833.html
Admission champion, Hauz khaz
011-27565856

Legendary Member
Posts: 940
Joined: Tue Aug 26, 2008 3:22 am
Thanked: 55 times
Followed by:1 members

by iamcste » Tue Dec 16, 2008 1:00 am
ronniecoleman wrote:oof~

It seems every day i need to rewrite my SC rules :x
Thats the magic of SC

:P

Junior | Next Rank: 30 Posts
Posts: 10
Joined: Thu Nov 20, 2008 10:04 am

by zeppelin » Sat Aug 15, 2009 7:15 am
Why is C not correct ?? Can somebody please provide me with an explanation.

User avatar
Master | Next Rank: 500 Posts
Posts: 393
Joined: Sun Jul 19, 2009 9:18 pm
Location: Chicago
Thanked: 8 times

by riteshbindal » Sat Aug 15, 2009 9:59 am
Even I thought of C.
Can someone please tell the source of this question?

Master | Next Rank: 500 Posts
Posts: 156
Joined: Sat Jul 19, 2008 6:41 am
Thanked: 8 times

C incorrect

by enniguy » Sun Aug 16, 2009 12:26 pm
zeppelin wrote:Why is C not correct ?? Can somebody please provide me with an explanation.
You can see 'their' in the non-underlined part of the sentence. Since the underlined part ends with "sunspot cycles" in option C, 'their' "incorrectly" refers to sunspot cycles whereas it is suppose to refer to trees.

Hence, C is wrong.

Grow in option A & E is a verb and 'trees' is the closest noun.

Senior | Next Rank: 100 Posts
Posts: 96
Joined: Mon Apr 08, 2013 6:48 am

by vietmoi999 » Thu Aug 22, 2013 9:13 am
" as seen.." modifies the noun phrase

" as" can not be a conjuction. "as" must be a preposition

" as seen..." is what

I do not understand this pattern.

User avatar
Legendary Member
Posts: 643
Joined: Wed Aug 14, 2013 4:27 am
Thanked: 48 times
Followed by:7 members

by vinay1983 » Fri Aug 23, 2013 9:18 am
As per my analysis, there is a 3/2 split seen at the beginning.
If we are saying on Earth(Do we need any other planet?)
A is wrong as we all agree
B Is wordy and "it is believed" does not fit in
C (Contention point) it indicates Sunspots as seen in trees? That is not correct, it should be trees
D As "iamcste" has mentioned as seen should be closer to trees, but in D it incorrectly modifies rate.
E is best among the given options.

SC is getting mad, madder maddest slowly. But, it's nice to learn new things

@vietmoi999" Welcome to GMAT SC!(Pun intended)