Ans: Since Robinson had not been to this beach for a very long time, the footprint could not be his. And also, the footprint was much larger than his own footprint. This is why it made him think that the footprint might belong to one of the savages who had wandered out to the sea. Robinson became more scared by thinking that someone had lived on the island. To access other questions, students can visit Vedantu for NCERT solutions for effective learning.