Answer:
C. The byproducts of many medicines are responsible for polluting the Amazon River.
Explanation:
If this is a true or false question, the answer is false. United States do share land borders with Mexico as well as Canada along with Russia, Bahamas and Cuba. United States then is north of Canada and south of Mexico. Hope this is the answer.
<span>The steppes of southern Russia, the African veldt and the pampas of Argentina are good examples of grassland biomes.</span>
C. Americans had the right to expand their control across the continent.