Giving brainliest FOR RIGHT ANSWERR<3

a

Explanation:

The mesosphere is very important for earth's protection. The mesosphere burns up most meteors and asteroids before they are able to reach the earth's surface.

A. The mesosphere protects the Earth from meteors. In the mesosphere, meteors burn up and break apart because of friction.

Explanation:

logic, AND a meteor is basically a rock from space, which means if it hit earths surface something would go boom lol. So, the mesosphere causes insane amounts of friction causing the rock to break apart into smaller pieces. These small pieces still would cause a boom since they would technically be huge still so whilst the small rocks go through the mesosphere they break down even more until they become particles instead. :)  

they it depends on if one believes about radioactivity, they make a geiger counter beep but maybe it was going to beep anyway electronics do wierd things all the time or it was programmed to beep near certain metals.

because natural gas is colorless, odorless, and tasteless, distributors add mercaptan (a chemical that smells like sulfur) to give natural gas a distinct unpleasant odor (it smells like rotten eggs). they locate the types of rock that are likely to contain natural gas deposits.