Sediments become rocks by lithification. 1  compaction-lithification occurs as the weight of overlying sediments and rocks squeeze the sediments together into rock. 2  cementation-precipitates from groundwater and the growth of secondary minerals between the fragments may cement the rock.ediments become rocks by lithification. 1  compaction-lithification occurs as the weight of overlying sediments and rocks squeeze the sediments together into rock. 2  cementation-precipitates from groundwater and the growth of secondary minerals between the fragments may cement the rock.
Weather in Mangrove Forests can ranges drastically because of their location in mainly tropical climates around the world. Most of the mangrove forestation is in the Indian Ocean, whether it be on the coasts of India or surrounding the islands of Indonesia (see Locations of Forests).
Warm and wet describes the tropical rain forest climate. The average annual temperature is above 20 C; there is never a frost. Rainfall varies widely from a low of about 250cm of rain per year to about 450 cm/year.