The effect of climate change on the biogeochemistry of estuarine soft soils

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Please be informed that this topic “The effect of climate change on the biogeochemistry of estuarine soft soils” is my main topic and is the writer have another topic to write a proposal with key words of “effect of climate change, soft soils” let me know. Please before starting to write my proposal the writer tell me that in which topic he wants to write my proposal.