Before beginning an experiment, mrs. wilson warns her science class not to drop the bar magnets on the floor. what is the most likely reason for mrs. wilson’s warning? a) the magnet might lose its magnetism. b) the magnet might make a startling noise. c) the magnet might become stuck to the floor. d) the magnet might cause the floor to become magnetic

Answer

A) The magnet might lose its magnetism.

Explanation

A magnet contain small sub-magnetic materials called domain. Inside the domains are other materials called dipole. This dipoles face one direction foe a magnetized material. When a  magnet is dropped, these dipoles may be forced to change direction due to earth's magnetic fields.  

These might cause demagnetization.

A) The magnet might lose its magnetism. (just got this on edge)

( ͡°( ͡° ͜ʖ( ͡° ͜ʖ ͡°)ʖ ͡°) ͡°) (sorry addicted to lenny faces)

what was the answer?

answer: the exterior temperature of commercial jet planes as they leave the stratosphere and return to the ground increases steadily.

explanation:

the lower most layer of atmosphere is troposphere which extends from 0 to 12 km above the surface of the earth. the temperature initially decreases as distance is increased from the earth's surface. commercial jets fly in lower part of the stratosphere. the stratosphere extends upto 50 km. the temperature in stratosphere starts rising again due to presence of ozone which traps the uv rays.

thus, when the planes leave the stratosphere and return to the ground, the exterior temperature increases steadily.