Question

1. what mistake did columbus make about the size of the earth or the location of asia?

Explanation:

Columbus underestimated the Earth's circumference and overestimated Asia's eastward extent, thinking the Atlantic was narrow to Asia (instead found Americas).

Answer:

Columbus mistakenly underestimated the Earth’s size (circumference) and overestimated how far east Asia extended, believing the Atlantic Ocean was a short crossing to Asia (but instead reached the Americas).