|
Author |
Message |
|
TAGS:
|
|
|
Senior Manager
Joined: 19 Feb 2004
Posts: 477
Location: Lungi
Followers: 1
Kudos [?]:
1
[0], given: 0
|
The axis of Earth's daily rotation is tilted with respect to [#permalink]
 02 Nov 2004, 02:59
Question Stats:
0% (00:00) correct
 0% (00:00) wrong based on 0 sessions
The axis of Earth's daily rotation is tilted with respect to the plane of its orbit at an angle of roughly 23 degrees. That angle can be kept fairly stable only by the gravitational influence of Earth's large, nearby Moon. Without such a stable and moderate axis tilt, a planet's climate is too extreme and unstable to support life. Mars, for example, has only very small moons, tilts at wildly fluctuating angles, and cannot support life.
If the statements above are true, which one of the following must also be true on the basis of them?
(A) If Mars had a sufficiently large nearby moon, Mars would be able to support life.
(B) If Earth's Moon were to leave Earth's orbit, Earth's climate would be unable to support life.
(C) Any planet with a stable, moderate axis tilt can support life.
(D) Gravitational influences other than moons have little or no effect on the magnitude of the tilt angle of either Earth's or Mars's axis.
(E) No planet that has more than one moon can support life.
|
|
|
|
|
|
|
Senior Manager
Joined: 21 Jun 2004
Posts: 345
Followers: 1
Kudos [?]:
2
[0], given: 0
|
B is my answer.
It is the moon that keeps the earth's stability.Remove the moon, stability lost and climate is affected.
BTW, I was even thinking of A also as an answer.
_________________
510 on my first GMAT. 610 on second GMAT.!
The struggle continues.
|
|
|
|
|
|
Intern
Joined: 09 Oct 2004
Posts: 7
Followers: 0
Kudos [?]:
0
[0], given: 0
|
I vote for B too.
But I can't see why A, and C are wrong..
|
|
|
|
|
|
Manager
Joined: 26 Jul 2004
Posts: 63
Followers: 1
Kudos [?]:
0
[0], given: 0
|
I also think it is B.
C and E are extreme and hence out.
D is out of scope as we don't care about other factors that what are stated in the argument.
A can't be concluded for sure as there may be other factors for life on Mars....
B is the only one that can be concluded from the argument.
|
|
|
|
|
|
SVP
Joined: 16 Oct 2003
Posts: 1957
Followers: 2
Kudos [?]:
14
[0], given: 0
|
Will go with B as well since it says the opposite of what is said in the passage.
|
|
|
|
|
|
Senior Manager
Joined: 19 Feb 2004
Posts: 477
Location: Lungi
Followers: 1
Kudos [?]:
1
[0], given: 0
|
Yes B is the OA Munna Bhai
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Moderators:
metallicafan, rajeevrks27, souvik101990, PTK, MacFauz, noboru, kissthegmat, carcass, willigetmylifeback, mikemcgarry, doe007, Vercules, Legendaddy, tuanquang269, RaviChandra, Marcab, Narenn
|
close
