What have farmers in the Amazon River Basin found to be the cause of reductions in the soil's fertility? ( a) the scarcity of tractors and modern farm equipment ( B ) constant intervention on the part of environmental groups ( C ) a lack of effort to farm the land ( D ) the removal of native plants.
Farmers in the Amazon River Basin have blamed mining and D. the removal of native plants for the cause of reduction in soil fertility. When the rain forest was cleared of vegetation it took all the nutrients from the soil with it.
