One layer of earth is composed mainly of liquid iron and nickel. this layer creates earth’s magnetic field, which protects earth from solar wind? what is the name of this layer of earth?

a) the outer core
b) the mantle
c) the crust
d) the inner core

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.