There are many obstacles to trading globally or internationally. Based on the powerpoint lecture, answer the following questions. 1. What is the purpose of barriers to trade? 2. What types of barriers to international trade are there? 3. Provide an example of a natural barrier to trade. "What does it mean to have a global vision?\" Why is it important? If an expert can answer this question as soon as possible using their own words. This is for BUS 001. Please and thank you