It is often argued that Mangroves serve as an effective shield against coastal disasters like cyclon...........

Environment and Ecology Natural ecosystems and protection

It is often argued that Mangroves serve as an effective shield against coastal disasters like cyclones and tsunamis. What property of Mangroves make them an effective safety hedge against such hazards?

Mangroves are a source of food and medicines and timber which are needed in the post disaster phase.

Mangroves separate the human habited areas from the coastal areas thereby protecting human beings from coastal hazards.

Mangroves have an extensive root system that prevents their uprooting and allows them to act as a shield during such hazards.

The thick and dense mangroves provide an excellent shelter during such hazards.

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Explanation:

Third option is correct explanation regarding Mangroves; the root system of mangroves makes them an effective safety hedge against hazards.
A mangrove is a shrub or small tree that grows in coastal saline or brackish water. The term is also used for tropical coastal vegetation consisting of such species. Mangroves occur worldwide in the tropics and subtropics, mainly between latitudes 25° N and 25° S.
The deltas of the Ganga, the Mahanadi, the Krishna, the Godavari and the Kaveri are covered with mangrove vegetation.