Can someone pls help me im tryna get this done tysm brailiest for free

Which is the most likely way an automotive engineer would use chemistry

Modern weaponry has increased the number of deaths in wars and violent conflicts.

Diffraction is when light is bent around obstructions. which of the these observation about clouds would indicate diffraction? a) after rain storms, you can sometimes see rainbows. b) clouds are white or gray and cannot be seen through. c) on a cloudy day, the temperature tends to be cooler than a sunny day. d) the edges of dark clouds appear lighter. this