Question

........................................................ waves are detected first because they move so fast .

.......................................... angles to the direction of movement .

A kind of scale used to measure the amount of seismic energy released by an earthquake : ................................

Answer 1

PRIMARY Waves Are Detected First Because They Move So Fast.

RIGHT Angles To The Direction of Movement.

A Kind Of Scale Used To Measure The Amount of Seismic Energy Released By An Earthquake RICHTER SCALE