Which agricultural innovation increased production in the 1700s?
a cash crops
b. four-crop rotations
plantations
d. hybrids

B. four-crop rotations

Explanation:

the four-crop rotations was invented in the 18th century which means from January 1, 1701 to December 31, 1800. (1700s).

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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.

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