4) The rate of plate movement along portions of the Mid-Atlantic Ridge has been determined to be 3cm/year. At this rate how long will take the Atlantic Ocean to widen another one kilometer?

lies are not protected speech because they have no social value.

true. earthquakes are felt whenever there is a slip around a fault in the rocks below the earth. this reorientation of faults create sesmic waves and is known as earthquake, the severity of which is measured in richter scale. these are more prominent in hilly regions as the rocks usually form faults to balance the pressures on it.