Energy stored in the bonds that hold together the atoms and molecules of all substances is called a. mechanical energy. b. electrical energy. c. chemical energy. d. kinetic energy.

Chemical energy is the answer to the energy stored in he bonds that hold together the atoms and molecules of all substances. SO answer C is the right one.

Hope this answers your doubt !! :)

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.

3.2x10^7