3. Productivity of about 65% of the continent's agricultural lands has declined significantly with vast tracts of land have been degraded by erosion, poor land management practices, mining and pollution
over the last 50 years.

Which sentences are punctuated correctly? check all that apply.andrew's favorite vegetables are: cucumbers, green beans, and red peppers.darren told me about his travels to different tropical islands: hawaii, puerto rico, and jamaica.there were several activities to choose from at the resort: snorkeling, swimming, and hiking.samantha enjoyed many types of music, jazz, classical, hip hop, country, and heavy metal.on my way to the movies, i had to pick up: roger, miguel, kimberly, and bev.