Erosion needs Earths rock
Erosion is wearing down and carrying away rocks by wind and moving water, happens faster with steep hillsides and heavy rain
The answer to your question would be B. This is because GM stands for genetically modified, which means it is not natural. And that is why people prefer organic food if they can afford it, because they don't want to eat food that is not natural. Hope this helps! :D Feel free to ask more questions.
Answer:
Natural elements such as metals, wood, and recourses such as H20,C02,and o2.
Iron, copper, and aluminum are 3 metals that are commonly used in todays economy.