You didn't hear something well. Ask about it. Example- kilimanjaro is 5.895 m high. 1) Mont Blanc is 4.807m high. 2)The Mount Elbrus is 5.642 m high.3) The Volga River is 3.530 km long.4) The Nile River is 6.670 km long. 5) The Mount Everest is 8.848 m hing.6) The Amazon River is 6.437 km long. 7) The Mississippi River is 6.420 km long.