The 2004 Tsunami made people realize that mangroves can serve as a reliable safety hedge against coastal calamities. How do mangroves function as a safety hedge?

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Submitted by examrobotsa on

Q: 76 (IAS/2011)
The 2004 Tsunami made people realize that mangroves can serve as a reliable safety hedge against coastal calamities. How do mangroves function as a safety hedge?
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question_subject: 

Ecology

question_exam: 

IAS

stats: 

0,302,140,56,13,71,302

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{'mangrove trees': [0, 0, 0, 1], 'mangroves': [0, 2, 0, 0], 'mangrove swamps': [0, 0, 0, 1], 'tsunami': [2, 0, 1, 2], 'magrove trees': [0, 0, 0, 1], 'coastal calamities': [0, 0, 0, 1], 'natural disaster': [1, 0, 0, 0], 'reliable safety hedge': [0, 0, 0, 1], 'safety hedge': [0, 0, 0, 1], 'dense canopies': [0, 0, 0, 1], 'tides': [2, 0, 0, 4], 'excellent shelter': [0, 0, 0, 1], 'storms': [1, 0, 0, 2], 'cyclone': [1, 1, 2, 3], 'extensive roots': [0, 0, 0, 1]}