Simplify the following text for a Grade 7 native English-speaking person.
Original: The Alps form a part of a Tertiary orogenic belt of mountain chains , called the Alpide belt , that stretches through southern Europe and Asia from the Atlantic all the way to the Himalayas .
Simplified: The Alps are just a part of a larger orogenic belt of mountain chains , called the Alpide belt . It reaches through southern Europe and Asia from the Atlantic Ocean most of the way to the Himalayas .