Check GMAT Club Decision Tracker for the Latest School Decision Releases https://gmatclub.com/AppTrack

 It is currently 25 May 2017, 03:50

### 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

# Geologists once thought that the molten rock known as lava

Author Message
Senior Manager
Joined: 21 Jun 2006
Posts: 286
Followers: 1

Kudos [?]: 124 [0], given: 0

Geologists once thought that the molten rock known as lava [#permalink]

### Show Tags

27 Jun 2007, 21:35
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 100% (00:37) wrong based on 9 sessions

### HideShow timer Statistics

Geologists once thought that the molten rock known as lava was an underground remnant of Earth's earliest days, sporadically erupting through volcanoes, but they now know that it is continuously created by the heat of the radioactivity deep inside the planet.
1. was an underground remnant of Earth's earliest days, sporadically erupting
2. had been an underground remnant of Earth's earliest days and sporadically erupted
3. was an underground remnant of Earth's earliest days, which sporadically erupted
4. would be an underground remnant of Earth's earliest days that sporadically erupted
5. was an underground remnant of Earth's earliest days, having sporadically erupted
Manager
Joined: 23 May 2007
Posts: 107
Followers: 1

Kudos [?]: 14 [0], given: 0

### Show Tags

27 Jun 2007, 22:29
Confused between the use of Would and Was here ?? Explanations please.
VP
Joined: 07 Nov 2005
Posts: 1122
Location: India
Followers: 5

Kudos [?]: 44 [0], given: 1

### Show Tags

27 Jun 2007, 22:31
A for correct switch from Simple past to present.
_________________

Trying hard to conquer Quant.

Senior Manager
Joined: 11 May 2004
Posts: 332
Followers: 1

Kudos [?]: 23 [0], given: 0

### Show Tags

27 Jun 2007, 22:56
ArvGMAT wrote:
Geologists once thought that the molten rock known as lava was an underground remnant of Earth's earliest days, sporadically erupting through volcanoes, but they now know that it is continuously created by the heat of the radioactivity deep inside the planet.
1. was an underground remnant of Earth's earliest days, sporadically erupting
2. had been an underground remnant of Earth's earliest days and sporadically erupted
3. was an underground remnant of Earth's earliest days, which sporadically erupted
4. would be an underground remnant of Earth's earliest days that sporadically erupted
5. was an underground remnant of Earth's earliest days, having sporadically erupted

'was' required for logical switch between simple past and present tense.

1,3,5 - left

3 - 'which' points earths earliest days - out

1, 5 - hard choice.

Selected 1.

But, what is wrong with 5??
Manager
Joined: 26 Oct 2006
Posts: 177
Location: uk
Followers: 1

Kudos [?]: 20 [0], given: 0

### Show Tags

28 Jun 2007, 04:07
syamee_u wrote:
ArvGMAT wrote:
Geologists once thought that the molten rock known as lava was an underground remnant of Earth's earliest days, sporadically erupting through volcanoes, but they now know that it is continuously created by the heat of the radioactivity deep inside the planet.
1. was an underground remnant of Earth's earliest days, sporadically erupting
2. had been an underground remnant of Earth's earliest days and sporadically erupted
3. was an underground remnant of Earth's earliest days, which sporadically erupted
4. would be an underground remnant of Earth's earliest days that sporadically erupted
5. was an underground remnant of Earth's earliest days, having sporadically erupted

'was' required for logical switch between simple past and present tense.

1,3,5 - left

3 - 'which' points earths earliest days - out

1, 5 - hard choice.

Selected 1.

But, what is wrong with 5??

1 for me too.
5 says " having sporadically erupted" which is past tense while we require present.
Senior Manager
Joined: 23 May 2010
Posts: 430
Followers: 5

Kudos [?]: 117 [0], given: 112

### Show Tags

10 Aug 2010, 07:52
mgmat-700-level-sc-66657.html?hilit=geologist#p496641

OA is A .. key point is Adverbual modifier can be placed anywhere in the sentence and should not necesarily touch the noun ...
I marked A by POE....
Re: SC: Geology   [#permalink] 10 Aug 2010, 07:52
Similar topics Replies Last post
Similar
Topics:
2 Geologists once thought that the molten rock known as lava 14 28 Mar 2011, 23:02
Geologists once thought that the molten rock known as lava 6 15 Oct 2009, 11:22
Geologists once thought that the molten rock known as lava 2 25 Jan 2008, 00:06
Geologists once thought that the molten rock known as lava 3 16 Jul 2007, 23:26
Geologists once thought that the molten rock known as lava 7 17 Jul 2007, 16:19
Display posts from previous: Sort by