in which layer of the atmosphere do meteors burn up before impacting earth
Meteoroid A meteor, known colloquially as a "shooting star" or "falling star", is the visible passage of a glowing meteoroid, micrometeoroid, comet or asteroid through Earth's atmosphere, after being heated to incandescence by collisions with air molecules in the upper atmosphere,[9][22][23] creating a streak of light via its rapid motion and sometimes also by shedding glowing material in its wake. Although a meteor may seem to be a few thousand feet from the Earth,[24] meteors typically occur in the mesosphere at altitudes from 76 to 100 km (47 to 62 mi).[25] The root word meteor comes from the Greek meteōros, meaning "high in the air".[22]
Atmosphere An atmosphere (from Greek ἀτμός (atmos), meaning 'vapor', and σφαῖρα (sphaira), meaning 'sphere'[1][2]) is a layer or a set of layers of gases surrounding a planet or other material body, that is held in place by the gravity of that body. An atmosphere is more likely to be retained if the gravity it is subject to is high and the temperature of the atmosphere is low.