What is the use of URNs? [closed]

What is the use of URNs? [closed]

References

Reference NO 1

http://www.cremationsolutions.com/Cremation-Urns-for-Ashes-FAQs-c66.html

Reference NO 2

http://en.wikipedia.org/wiki/Urn

Reference NO 3

http://www.answers.com/topic/urn

Reference NO 4

http://www.merriam-webster.com/dictionary/urn

Reference NO 5

http://www.thefreedictionary.com/urn

Reference NO 6

http://www.oddee.com/item_98273.aspx

Reference NO 7

http://www.yellowpages.com/mesa-az/mip/caskets-urns-headstones-463619232

Reference NO 8

http://www.petangelmemorials.com/faqs.php