Answer: A

You are correct! Less than 10% of the Tallgrass Paririe in the US remains as grasslands — 71% has been converted to cropland, and 19% to urban areas.

There are few large unaltered expanses of grasslands left in the world. Most grasslands have been fragmented by agricultural or urban areas or roads — all of which compromise the ecosystem's ability to provide goods and services, particularly biological diversity.

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