The correct answer is the Transatlantic Mountain Range:
it is a mountain range that splits Antarctica in two parts called East Antarctica (which includes the South Pole) and West Antarctica (West Antarctica is the smaller part which also includes the Atlantic Peninsula.
20 meters walk south is the <u>short leg</u>. The long leg is 30 meters walk east. Distance from 30 meters east to starting point is a hypotenuse.
Floods, hurricanes, tornadoes