Coal/ fossil fuels is most likely the answer.
Answer: The fungi spores attach to the roots of the host and form networks of microscopic fibers called hyphae that form large networks that reach where roots cannot. The hyphae help the plant absorb water, mineral salts and nutrients for strong growth.
Answer: Avoid non-native and invasive species of plants.
Well first off we need to check the relationship between the country’s and if any delays are happening during the process of the transportation of the trade. You would also need security and background checks between the traders and the trades being traded and transported to another country. We would also need to know what things to ship and not to ship and make sure everything is safe to be traded.