Which of the following is a benefit of scientists studying seismic waves?

it can help us determine and predict earth quakes. and also volcanic blasts because of when a volcano blows off and if its powerful enough like most it can cause the earth or nearby area to rumble or earthquake before it happenes because of the gasses have built up so much that the ground trapping the gasses cannot handle the pressure therefore crack the earth and explode the gasses making lots more pressure causing it to errupt... i think

answer; i believe that the correct answer is(d) nondisjunction during meiosis;

i think its both a and b