In a single region, only constructive or only destructive forces are at work. true false

This statement is false.

Explanation:

Both constructive and destructive forces can affect landforms in a single region at the same time.

Example of a constructive force is a volcanic eruption. It can lead to creation of a new landform, like the volcanic island of Anak Krakatau in Indonesia.

At the same time, the same region can experience destructive forces, such as caldera phenomenon. In the same area the island of Krakatoa was at the place where Anak Krakatau can be seen now . As a result of a massive eruption, a large cauldron-like formation of empty space have occurred in the surface of the Earth after magma came out of the volcano. As a result of gravity, the landmass sank into the ocean and the island of Krakatoa was destroyed.

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