I would say B Because I remover my teacher telling me that tundra are mainly found at northern latitudes.
They most likely have faculties that treat ocean water.
Because of the rapid changing water levels the plant life on the shores are drowning out so they can not grow.
Hope this help. :D
Answer: Because more and more agriculture is one of the main "professions", where the use of water is extremely essential. Therefore, there is a great demand for it due to the scarcity that it has been having, since this is a renewable medium.
Explanation: