Imagine that you’re flying in a plane. How do you know where to go? There aren’t any signs floating in the air. How do pilots know where to land their planes?

A plain follows the lights on the runway to guide the airplane to the ground and they are given coordinates to the destination on where the are flyying to. the airplane GPS uses signals to analyze the wind and weather and the distance to destination.

the correct answer is "hematoma formation, with ligaments that are stretched, partially, of fully torn" ankle sprain are produced by an injury to the tough bands of tissue (ligaments) that surround and connect the bones of the leg to the foot. this causes several damage to the ankle including hematoma formation and ligament injury .

the factors that the economies of the muslim empires prosper were:

1- land trade routes-located between three continents  

2- sea trade routes

trade contributed to the spread of muslim empires, and with that islamic culture led to a growing feeling of internationalism resulted in the transfer of technology, science, and other cultural forms.