Here's why:
* Mesosphere: This layer of the atmosphere is located above the stratosphere. It's characterized by very low air density, which allows meteoroids to burn up due to friction with the air.
* Stratosphere: This layer is known for its stable conditions and is where the ozone layer resides. It's not dense enough to cause significant friction for most meteoroids.
Only the smallest meteoroids might completely burn up in the stratosphere, but the majority will reach the mesosphere before burning up.
