What layer of earth atmosphere blocks meteors from hitting the earth?

Answer 1

All layers of the atmosphere. Depending on the angle at which a meteoroid enters the earth's atmosphere, it follows a trajectory towards the earth's surface. While doing so, aerodynamic friction heats it up and it becomes a meteor. It may fragment and burn up entirely but otherwise, it will remain a meteor all the way down to the earth's surface and, when it strikes, it will become a meteorite.

Answer 2

Small meteors - the size of grains of dust, up to grains of rice - hit Earth every day. THOUSANDS of them. "Meteor shower" particles are mostly dust-and-sand sized.

When those particles enter the Earth's atmosphere, their high speed causes friction, which heats them to incandescence, or "white hot". The glowing streak of the meteor is the meteor burning up high in the air. Only fairly large objects survive this blazing entry into the atmosphere to become "meteorites".
Many meteors burn up as they whiz through the atmosphere. that is why they look like shooting stars because they r on fire. But a lot hit the ground, and are called meteorites. Some have been so huge that they have left very large craters.

Answer 3

The mesosphere does a rather decent job of slowing meteors down. Meteorites, however, hit Earth all the time, most of them very small and unnoticeable. They are slowed down as much as they are burned up. The ones that make great impacts on Earth were ones that were so large as meteoroids, that when they entered the Earth's atmosphere, barely any material was burned up. Meteors/Meteoroids add several tons of weight to Earth every day.

So in recapitulation, Meteors are mostly burned up in the Thermosphere since it is the hottest layer and the largest. The mesosphere would "slow it down" the most but this would only make the impact crater that the meteorite leaves (if any at all) shallower.

Answer 4

Earth's atmosphere is comprised of four different layers including the troposphere, stratosphere, mesosphere and the thermosphere. The troposphere has about 80% of the total mass of the atmosphere.

Answer 5

The lowest is the troposphere, which is the layer that provides most of our weather. It contains about 80% of the Earth's air, but extends only to a height of about 11 miles (17 kilometers) at the Equator and less at the Poles.

Answer 6

Does the Thermosphere protect the Earth from meteors?

The Thermosphere is the outer most layer of the Earth's atmosphere. The lower boundary starts approximately 48 miles up and then just extends into planetary space where it blends with the solar wind. The concentration of gas particles is so low that it essentially does nothing to impede any meteors of a sizable nature.

Answer 7

The layer that protects the earth from meteoroids is the mesosphere which is where most of the ozone layer is. The ozone layer burns up the meteoroids so they don't cause damage by crashing down on earth.

Answer 8

layer close to the surface is the top part of the mantle

Answer 9

The mesosphere is the layer of the atmosphere that protects earth's surface from being hit by most meteoroids.

Answer 10

There is no protection against these things. Numerous asteroids and meteors, and likely comets also, have struck Earth. That we have avoided major hits lately is a matter of pure luck.