Hey,
This is what I learnt for this dot point.
World trade is the exchange of goods and services between countries
Positive for low and middle income countires Increases employment, which can lead to improved living conditions
Negatives for low and middle income countires Possible exploitation of workers especially for women and children
Environmental degradation due to over-farming and use of pesticides
Tourism travel for work or leisure, is the worlds fastest growing industry
Positive for low and middle income countires Encourages governments to improve local infrastructure, e.g. roads and water supplies
Negatives for low and middle income countires Environmental threats to waterways due to overuse and inadequate waste disposal
Increased risk of epidemics due to international travel
Hope this helps