Which of the following landforms is a result of collision of two oceanic plates?

Here are the answers to the geography questions:

1. A. an island arc An island arc is formed when two oceanic plates collide, and one subducts beneath the other, leading to volcanic activity that creates a chain of volcanic islands.

2. B. an oceanic trench An oceanic trench is formed at convergent plate boundaries where one oceanic plate subducts under another, or under a continental plate. Block mountains, escarpments, and rift valleys are all landforms that can result from faulting.

3. D. extreme temperatures Volcanic eruptions, tectonic movements, and even the weight of large water bodies (induced seismicity) can directly cause earthquakes. Extreme temperatures do not directly cause earthquakes.

4. A. oceanic ridge An oceanic ridge is a submarine mountain range formed at a divergent plate boundary where tectonic plates move apart, and new oceanic crust is created.

5. D. tension forces The epicentre, focus, and surface waves are all features or characteristics of an earthquake event. Tension forces are a type of stress that can cause an earthquake, but they are not a feature of the earthquake itself.