Key words

Depression : a relatively sunken area, enclosed by a higher land without an outlet.

Warping : a natural process whereby land is twisted out of shape.

Volcano : an opening in the earth's surface out of which hot gases, ash and lava may pour.

Rift valley : a long, narrow land let down between two parallel fault lines.

Temperature : degree of hotness or coldness. this is when rock layers -are squeezed from opposite sides and the lovers fold.

Tourist : someone who travels to a place for pleasure.

Boundary : a line of demarcation (natural or artificial)

Sensitise : teach people about something.