Question

• food: native american culture introduced corn and potatoes to diets around the world, becoming integral to the production of much other food
• corn is a staple ingredient of many products, like cereal.
• potatoes became such staples around the world that they are often associated with other areas like ireland.
• vanilla, tomatoes, avocados, chocolate, maple syrup, pineapple, and turkey were all introduced to settlers by various native peoples.
• material: cotton and rubber, originating in the americas, has allowed for the development of extensive industries.
• native americans were essential in instructing the first european settlers in how to harvest these resources.
• cotton has become a global staple in textiles, providing greater access to affordable quality clothing.
• rubber has allowed for the advent and use of extensive new technologies, like cars, which depend on rubber tires.

how have native americans affected agriculture worldwide?

• they increased farming efficiency with new plowing methods.
• they required global agricultural aid to sustain their communities.
• they contributed to the introduction of highly useful crops.

Explanation:

The question is about how Native Americans affected agriculture worldwide. The text above the question states that Native American culture introduced crops like corn, potatoes, vanilla, tomatoes, etc., to diets around the world. The first option about new plowing methods isn't supported by the text. The second option about requiring global agricultural aid is also not mentioned. The third option, "They contributed to the introduction of highly useful crops," matches the information about introducing various important crops.

Answer:

They contributed to the introduction of highly useful crops.