Which is not true of the weak nuclear force? a) it is a repellent force. b) it acts over a shorter range than the strong nuclear force. c) it is an attractive force. d) it is weaker than the strong nuclear force.

The weak nuclear force is one of the fundamental forces:

Is a force that is responsible of some radiative phenomenoms, like the beta decay.

The intensity is way smaller than the one of the strong interaction, but this is because it acts in a way smaller range. And this can produce atractive and repulsive interactions.

So options D and B can be discarded.

And this force can be repulsive or attractive depending on the phenomena, so the options that are wrong are A and B, because the interaction is both things, not only one.

when it gains or loses electrons

layers of the earth affect the waves and these effects are seen on instruiments such as seimometers