Research one crop that developed in the Americas (such as corn or potatoes) and its impact on the world today.

Corn, As one of the worlds most dominant food groups with tons of land dedicated to its production corn is used for a variety of purposes including animal feed, grain for human consumption, ethanol,  high fructose syrup, sweeteners and starch. Corn and corn silk are also used to lower blood pressure and help with inflammation on the kidneys, bladder, urinary system, and prostate. Corn was one of the first foods to be used as a medicine and is still used for multiple purposes today.

Explanation:

Im not sure if this is a good answer for whatever youre working on but i hope it helps! Im only a measely college student so if this wont help you dont have to use this as your answer. You can change whatever you like if it sounds to technical.

d.prevent the spread of communism outside of eastern europe.

the geography of greece

led to limited interactions with other cultures in the mediterranean

was rich in natural resources and led to repeated invasions from the macedonians

encouraged greater contact with peoples on the southern and eastern mediterranean coasts

caused the greeks to eventually relocate eastward under alexander the great