Brain Teasers
Brain Teasers Trivia Mentalrobics Games Community
Personal Links
Submit a Teaser
Your Favorites
Your Watchlist
Browse Teasers
All

Cryptography
Group
Language
Letter-Equations
Logic
Logic-Grid
Math
Mystery
Optical-Illusions
Other
Probability
Rebus
Riddle
Science
Series
Situation
Trick
Trivia

Random
Daily Teasers
Search Teasers

Advanced Search
Add to Google Add to del.icio.us

More ways to get Braingle...

Geological Groups

These brain teasers rely on your ability to recognize groups of common attributes. For each of these puzzles you'll need to figure out why the words or letters are grouped as they are. Sometimes you will be asked to pick the odd-one-out or to place a new word into the correct group.

 

Puzzle ID:#50117
Fun:*** (2.27)
Difficulty:*** (2.95)
Category:Group
Submitted By:JQPublict*

 

 

 



Find the odd one out in each of the following:

a) fjords, stacks, tombolos, waterfalls
b) sea arches, bays, headlands, valleys
c) basalt, granite, obsidian, pumice
d) Hawaiian Islands, Ryukyu Islands, Marianas Islands, Aleutian Islands



Answer

a) Tombolos. Tombolos are depositional landforms; the rest are erosional landforms. Fjords are formed by glacial erosion, stacks by wave erosion and waterfalls by fluvial erosion.
b) Headlands. Headlands are made of resistant rocks and are less vulnerable to erosion, which is why they stand out from the neighbouring bays. The other three, being less resistant, have been eroded more.
c) Granite. Although all four are igneous rocks, granite is the only plutonic rock. The other three are volcanic rocks.
d) Hawaiian Islands. They are the only island chain formed in the middle of a plate. The location of the hot spot in the asthenosphere is fixed while the Pacific Plate moves northwest. This carries old volcanoes away and creates new volcanoes, forming the chain. The other three island chains were created along destructive plate boundaries.

Hide




What Next?

  
  

See another brain teaser just like this one...

Or, just get a random brain teaser

If you become a registered user you can vote on this brain teaser, keep track of
which ones you have seen, and even make your own.

 



Comments


There are no comments




Back to Top
   



Users in Chat : None 

Online Now: 11 users and 385 guests

Copyright © 1999-2014 | Updates | FAQ | RSS | Widgets | Links | Green | Subscribe | Contact | Privacy | Conditions | Advertise

Custom Search





Sign In A Create a free account