The small, isolated erosional feature made up of essentially horizontal layered rock produced by stream is known as

The zone that extends from the low tide mark or line to the edge of the continental shelf is called

In sem-arid regions, capillary action draws lime-bearing waters to the surface, where by evaporation, a lime-rich deposit is formed called

The region of most violent earthquakes that lie in circum-pacific belt is 

The most generally used method for the geographical location of distant epicentres is the 

The average density of all surface rocks has been estimated at