A．Erosion of rock mantle．
B．Volcanic eruption near coastal area．
C．Dead bodies of marine life．
D．Evaporation of rain water．
A．Ocean water makes the areas moisturous．
B．Salts escape from the ocean to create rain drops in the air．
C．Water evaporates to form cloud in the atmosphere, which helps to produce rain．
D．High salinity level increases evaporation and condensation so as to create more rain．
A．Telephone companies．
B．Internet service providers．
C．Census bureaus．
D．Financial institutions．
A．National Security Bills．
B．National Security Letters．
C．US Code．
D．Human Rights Bills．