Match each scientist to the observation she is most likely to make

Which soil layers comprise the topsoil? o horizon a horizon b horizon c horizon

Agriculture is a. slowly being replaced by mining as the primary industry in southern africa c. not possible in southern africa because of drought b. the primary industry in southern africa d. none of the above

Ocean crust is a. made from submerged continents b. magnetically produced crust c. produced at mid-ocean ridge d. produced at all plate boundaries