Sea level (or the water level when there are no waves) is referred to as

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.

answer (a) more rain in u s and less rain in australia and asia

the rub-al-khali is also known as the arabian desert and the "empty quarter"