WebbExplanation: The Earth's radius (r) is 6371 km or 3959 miles, based on numbers from Wikipedia, which gives a circumference (c) of c = 2 * π * r = 40 030 km. We wish to find the height (h) which is the drop in curvature over the distance (d) Using the circumference we find that 1 kilometer has the angle. 360° / 40 030 km = 0.009°. WebbBalboa Park is the previous site of EarthFair, the world’s largest Earth Day festival, which drew 50,000 attendees annually. We are excited to continue the tradition of celebrating …
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