Summer is Coming! Join the Game of Timers Competition to Win Epic Prizes. Registration is Open. Game starts Mon July 1st.

 It is currently 18 Jul 2019, 23:03

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

Amphibian populations are declining in numbers worldwide.

Author Message
TAGS:

Hide Tags

Manager
Joined: 08 Jan 2018
Posts: 217
Location: United States (ID)
GPA: 3.33
WE: Accounting (Accounting)
Re: Amphibian populations are declining in numbers worldwide.  [#permalink]

Show Tags

25 Feb 2018, 17:01
Also, is this a good gmat question that has a chance to appear on the actual exam?
Manager
Joined: 08 Jan 2018
Posts: 217
Location: United States (ID)
GPA: 3.33
WE: Accounting (Accounting)
Re: Amphibian populations are declining in numbers worldwide.  [#permalink]

Show Tags

25 Feb 2018, 17:06
According to the official explanation, the argument concerns with the damage by the UV-B, not the types.
The statement A is neutral, not positive or negative. In other words, A can only be correct if A has an assumption that UV-B is bad for amphibians, and UV-B only only causes damage when the ozone is depleted. Otherwise, there muse be a direct connection between the ozone layer and the amphibians.
Manager
Joined: 03 Feb 2018
Posts: 89
Re: Amphibian populations are declining in numbers worldwide.  [#permalink]

Show Tags

12 Jul 2018, 17:22
I want to bump this for discussion. I chose D, and even after reading the explanations above I am still not convinced it is A.

If we consider D, predation and starvation could affect population size. So when it says habitat has not shrunk, that means another cause is to blame. Are we not supposed to consider outside information in this case? My understanding is that we can on S/W questions.

Also, I know how to negate general assumption questions, but not S/W questions. Help on this would be appreciated.

Posted from my mobile device

Finally, after an hour spending on this question, I realized that D actually strengthens the argument. because D says that natural habitat has now decreased and the meaning of natural habitat is the area to live. so this one removes the alternate cause if any for the effect to be created.

A --> nowhere it says because of damaged genes the population decreases. hence it does not strengthen the argument.
Manager
Joined: 10 May 2018
Posts: 123
Concentration: Finance, Sustainability
Re: Amphibian populations are declining in numbers worldwide.  [#permalink]

Show Tags

13 Jul 2018, 00:08
The natural habitat did not become smaller, implies it has either remained as large as it was or become larger, either of which strengthens the fact that it was not because of the decrease in natural habitat which caused the population decline. So must be depletion of the ozone layer.

Read this better explanation if you want to.
magnolia wrote:
What OE says about D? Why does it strengthen?

D) The natural habitat of amphibians has not become smaller over the past century.

Hope it helps!

_________________
Stuck in the 600-700 score bracket? I welcome you to read my four-step course of action to a modest score.
I also invite you to critique and help me find flaws in my modus operandi. Thanks!
Re: Amphibian populations are declining in numbers worldwide.   [#permalink] 13 Jul 2018, 00:08

Go to page   Previous    1   2   [ 24 posts ]

Display posts from previous: Sort by