It is currently 23 Nov 2017, 12:11

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# Nature constantly adjusts the atmospheric carbon level. An

Author Message
VP
Joined: 26 Apr 2004
Posts: 1205

Kudos [?]: 847 [0], given: 0

Location: Taiwan

### Show Tags

11 Sep 2004, 19:50
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions

### HideShow timer Statistics

Nature constantly adjusts the atmospheric carbon level.
An increase in the level causes the atmosphere to hold more heat, which causes more water to evaporate from the oceans, which causes increased rain. Rain washes some carbon from the air into the oceans, where it eventually becomes part of the seabed.
A decrease in atmosphere carbon causes decreased evaporation from the oceans, which cause less rain, and thus less carbon is washed into the oceans.
Yet some environmentalists worry that burning fossil fuels may raise atmospheric carbon to a dangerous level. It is true that a sustained increase would threaten human life. But the environmentalists should relax---nature will continually adjust the carbon level.

Which one of the following, if true, would most weaken the argument in the passage?

(A) Plant life cannot survive without atmospheric carbon.

(B) It is not clear that breathing excess carbon in the atmosphere will have a negative effect on human life.

(C) Carbon is part of the chemical â€œblanketâ€

Kudos [?]: 847 [0], given: 0

Intern
Joined: 22 Mar 2004
Posts: 25

Kudos [?]: [0], given: 0

Location: TX

### Show Tags

11 Sep 2004, 21:42
Conclision is that:
Nature will take care of the carbon levels

Evidence is that:
Carbon levels are depleted and replenished by the laws of evaporations and condensation.

Assumption is that:
There is no external inflluence other than pure natural causes.

E states that the natural adjustment process takes millions of years to adjust the level of carbon, so this weakens the argument

Kudos [?]: [0], given: 0

Director
Joined: 05 May 2004
Posts: 574

Kudos [?]: 68 [0], given: 0

Location: San Jose, CA

### Show Tags

11 Sep 2004, 22:25
I get E

If E is true then even though nature continually adjusts the carbon level, the lead time is too long and sustained increase in carbon would threaten human life in short term

Kudos [?]: 68 [0], given: 0

Director
Joined: 16 Jun 2004
Posts: 891

Kudos [?]: 68 [0], given: 0

### Show Tags

12 Sep 2004, 01:55
only E makes most sense. Provides the critical info that the carbon correction is not a daily happening.

Kudos [?]: 68 [0], given: 0

12 Sep 2004, 01:55
Display posts from previous: Sort by

# Nature constantly adjusts the atmospheric carbon level. An

Moderators: GMATNinjaTwo, GMATNinja

 Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.