pre-assessment g10science

A volcano is considered active if it has a symmetrical cone shape.

• True

• False

• Maybe

• Definitely not at all!

Answer explanation

Shape alone doesn't determine activity.

The epicenter of an earthquake is the location deepest within the Earth where the shaking originates.

• False

• True

• Maybe

• Not at all

Answer explanation

False (this is Hypocenter)

Major mountain belts are typically formed by:

• Erosion of existing landforms.

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• Tsunami

• The collision or movement of tectonic plates.

• Weathering process

What is the name of the process where one tectonic plate dives under another?

• Seafloor spreading

• Transform boundary

• Continental drift

• Subduction

Answer explanation

locations on Earth where the oceanic material of one tectonic plate dives below the material (oceanic or continental) of another tectonic plate into the mantle.

Why are most earthquakes and volcanic eruptions concentrated along specific areas on Earth?

• These areas have thinner crust.

• These areas are located along plate boundaries.

• They are closer to the Earth's core.

• The concentration is just a coincidence.

A chain of volcanoes that encircles the Pacific Ocean is known as the:

• Pacific Ring of Fire

• Mid-Atlantic Ridge

• San Andreas Fault

• The Himalayas

How does Plate Tectonic Theory explain the formation of major mountain belts?

• Plates moving apart create deep ocean trenches.

• Plates sliding past each other create smooth, flat plains.

• Hotspots within plates melt rock, pushing up mountains.

• Plates colliding cause the crust to crumple and rise.

Where are most active volcanoes and earthquake epicenters concentrated?

• Randomly across the Earth's surface

• Primarily along plate boundaries

• In the center of continents

• Evenly distributed across the oceans