Please help its due in 5 minutes What soil type is the most fertile of all soils?

Vertisols

Histosols

Mollisols

Oxisols

answer; ///i believe the correct answer is (a) decrease biodiversity;

answer; in the united states the plains include the great plains of the west and the tail grass prairie to the south of the great lakes extending east to the appalachian plateau

i am a little confused myself with what goes with the letters and what goes with the numbers but ill do my best to you

the cordillera states and grand canyon are along the southwest u.s. and northern mexican pacific.

the great plains and southwest desert are also the prairie and home to many earthquakes too .

the coastal plains have poor soil and many factories started in the south.

is this what u needed? if not i can see what i can do

the answer is c i just put d and i got it wrong so yeah its d