Reasons why a highway should NOT be built in the Darien Gap

A road would pose a threat to indigenous cultures, accelerate deforestation and allow the spread of disease - such as foot and mouth cattle disease, which the Gap has so far effectively prevented from spreading to North America. Rainforest destruction is already evident en route to Yaviza.

Explanation:

answer; i believe that the correct answer is (the explosion of a nearby star(supernova);

answer; european crusades;