What two features form when an oceanic plate and an ocean plate collide?

At some convergent boundaries, an oceanic plate collides with a continental plate.Oceanic crust tends to be denser and thinner than continental crust, so the denseroceanic crust gets bent and pulled under, or subducted, beneath the lighter and thicker continental crust. This forms what is called a subduction zone

The correct answer would be lost aquila

Airplanes usually fly in the lower part of the stratosphere - there is nearly no water vapor and it's very dry, so it to avoid big turbulences. it's about 8-10 kilometers above ground (depending on weather conditions, region etc.)