On average, plowed land erodes away at slightly more than 1 millimeter per year, while new soil builds up at about 0.2 millimeters per year. As a result, continually cultivated soil will become exhausted in the space of several hundred years, unless no-till agriculture is practiced. No-till agriculture is a method in which crop stubble remains in place and a special drill inserts the seeds into the soil. However, only about 16 percent of cultivated areas in the United States use this method.

Which of the following is best supported by the information above?

(A) Although the advance of farming technology has made no-till agriculture available to wealthy farmers, such methods are financially impractical for many American farmers.
(B) If the United States does not utilize means that replenish or reuse exhausted soil, it must eventually find other ways of getting agricultural products.
(C) Agricultural industries that do not require plowing - such as dairy or chicken farms - are not affected by topsoil erosion.
(D) If 5 out of 6 of all American farms were to practice no-till agriculture, the United States would produce enough agricultural products to meet domestic demand for several hundred years.
(E) Hydroponic farming (farming without soil) would solve the United States’ land erosion problem.


OA B

Source: Veritas Prep