WILL GIVE BRAINLIEST AND 30 POINTS!
A nanofilm is an example of nanotechnology. Which statement correctly identifies it as being part of nanotechnology?

It must display quantum effects.
It is smaller than a single atom.
It is bigger than a microfilm.
It is a device that cannot be controlled.
IT IS NOT B!

A, It must display quantum effects.

Explanation:

Looking at the available options, B, can't be right because it isn't smaller than a single atom, C isn't right because it is not bigger than a microfilm, and nanotechnology can indeed be controlled, making D also wrong, making A the only valid option. (I just did it on Edge, and it was also right)

d. platinum would have the greatest temperature increase because it has the lowest specific heat.

it's when something is going so fast it makes a loud noise, breaking the sound barrier, for example: a jet makes a loud noise, not only cause of the jet but because they reached a point where they went so fast that you can year the noise from various parts, kinda like a police car, lets say the car was going   so fast that you hear the siren of the cop car right next to you, but the car is probably a mile a way, it's cos the siren was next to you a few seconds if you understand me