Simplify the following text for a Grade 10 native English-speaking person.
Original: Enormous stress was exerted on sediments of the Tethys Ocean basin and its Mesozoic and early Cenozoic strata were pushed against the stable Eurasian landmass by the northward-moving African landmass .
Simplified: Now sediments of the Tethys Ocean basin and its Mesozoic and early Cenozoic strata sit high above sea level .