Because most agricultural practices in North America produce row after row of only a few, genetically identical, varieties of crops, the continent's food system rests precariously on a rapidly eroding genetic base, increasingly susceptible to pests and disease. ███
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The author's main purpose in ███████ ███ ███████ ██ ██
criticize current efforts ██ █████ █ ███████
Although the author does have a
contrast two approaches ██ ███████ █ ███████
This doesn’t capture the author’s support for research into indigenous knowledge. The author’s intention isn’t merely to describe differences between approaches; it’s to support a particular approach.
propose a novel ████████ ██ █ ███████
Tempting, but not accurate, because the author doesn’t “propose” a “novel” (new) solution. Rather, the author
praise a definitive ████████ ██ █ ███████
“Definitive” is too strong. The author never suggests that the solution is definitive or otherwise certain to work. Rather, the author uses the phrase “
support a promising ████████ ██ █ ███████
This best captures the author’s purpose, which is to support research into indigenous knowledge of heirloom crops as a way to solve the problem of North American crops’ eroding genetic base.
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