Map of Active volcanoes and Earthquake Epicenter

Where do most volcanoes on Earth Occur?

• Along the equator

• . On the ocean floor

• On land

• over the hotspots

All hotspots rise beneath oceanic plates

• true

• false

. Why is Pacific ring of fire being dangerous?

• Risk for subduction zone

• Flooded prone area

• No tectonic fractures

• all of the given

Which is likely to happen when the countries are lying near the plate boundaries?

• Earthquake

• volcanic eruptions

• both a and b

• typhoon

Most volcanoes are connected around the Ring of Fire, which encircles what ocean?

• Atlantic

• Pacific

• Indian

• Arctic

Which characteristic of magma mainly determines its explosiveness?

• Color

• Amount

• Temperature

• Silica content

Which of the following characteristics of a volcano depends on its magma emission?

• Age

• Size

• Shape

• Location

What is the type of volcanoes that have a record of eruption within the last 600 years or those that erupted 10, 000 years ago based on analyses of their materials?

• Active

• inactive

• dormant

• extinct

Which of the following is an active volcano in the Philippines?

• Apo in Davao

• Bud Datu in Sulu

• Isarog in Camarines Sur

• Kanlaon in Negros Oriental

What is the type of volcano that has a large, nearly perfect sloped structure formed from alternate solidification of both lava and pyroclastic deposits?

• Cinder cone

• shield Volcano

• Composite Volcano

• Dormant