Question

what are mangroves where are they cultivated​

Answer 1

here is your answer mate ......

Mangrove forests thrive near the mouths of large rivers where river deltas provide lots of sediment (sand and mud). Mangrove roots collect sediments and slow the water's flow, helping to protect the coastline and preventing erosion. Over time, the roots can collect enough debris and mud to extend the edge of the coastline further out.

Answer 2

mangroves is a small tree or shrub which grows in the blackish water or

coastline saline water