What have farmers in the Amazon River Basin found to be the cause of reductions in the soil's fertility? The scarcity of tractors and modern farm equipment, Constant intervention on the part of environmental groups, A lack of effort to farm the land, The removal of native plants

Which statements about wells are true? check all that apply. a) wells bring groundwater from the unsaturated zone to the surface of the water. b) wells need to be drilled below the water table. c) if water is pumped from a well too quicky, the well may run dry. d) water from wells is generally not safe to drink. e) water gushes from artesian wells due to pressure.

Migrant workers who fill employment needs in their host country often send remittances to their home countries

How far is a geographic second? a.) around 100 feet b.) around 1,000 feet c.) around 5,000 feet d.) none of the above