12. What are the factors to consider to have an accurate typhoon track prediction? A. typhoon's position, strength of high-and-low pressure areas and how these areas will migrate B. typhoon's size, strength of high-and-low pressure areas and how these areas will migrate C. typhoon's position, vicinity of high-and-low pressure areas and how these areas will migrate D. typhoon's size, temperature of high-and-low pressure areas and how these areas will migrate 13. Which best explains why the air in the surroundings moves towards the eye during the formation of typhoon? A. Typhoons have no air pressure in the middle thus, pulling the air towards it. B. Typhoons have normal air pressure in the middle thus, pulling the air towards it. C. Typhoons have lower air pressure in the middle thus, pulling the air towards it. D. Typhoons have higher air pressure in the middle thus, pullingthe air towards it.