As weathering is break down of the ricks or is the dissolving of the ricks by the minerals on earth surface since rock has been broken down erosion transfers these bits of rocks away and thus these materials are deposited in the rover deltas and hence Mississippi river most directly forms the surface materials.
The achievement of sovereignty for the Quebec state. The creation of a political and economic association between this new independent state and Canada.
Personally I would say it's A (apart from the installation costs which may make it a little expensive) but it does involve certain aspects of D also as wind energy doesn't cause pollution. So either A or D!
