Science 9 Quarterly Exam

Which of the following is a type of volcano is commonly found in the Pacific Ring of Fire?

• scoria cone

• stratovolcano

• shield volcano

• cinder volcano

The semi-molten rock underneath a volcano is called _______.

• lahar

• lava

• geyser

• magma

Which of the following is the tallest volcano on Earth?

• Mauna Kea

• Mt. Everest

• Mayon Volcano

• Mt. Vesuvius

Active volcanoes are most likely to be found ________.

• in convergent boundaries

• in the Pacific Ring of Fire

• where tectonic plates collide

• all of the above

When magma is thick with more dissolved gases, we can expect the volcanic eruption to be a/an ______.

• oozing ash and lava

• lava frothing over the crater

• spewing water like geyser

• violent ejection of ash and lava

Which of the following statements is not true about volcanoes?

• The pH of water in a lake near a volcano is usually basic.

• Volcanoes can form at the barrier of tectonic or oceanic plates.

• The largest volcano in our solar system known to scientists is in Mars.

• The composition of the magma and lava is the same; it is just the site of their formation where they differ.

A volcano that is referred to as a dormant volcano is classified as _______.

• active

• inactive

• extinct

• tectonic

Mt. Kilauea in Hawaii is a low and broad volcano. This type of volcano that is formed from loose and fluid lava that flows over each other is called ________.

• cinder cone

• stratovolcano

• shield volcano

• submarine volcano

Which of the following is the most violent type of volcanic eruption?

• Plinian

• Vulcanian

• Hawaiian

• Strombolian

Which type of plate movement forms mountains and volcanoes?

• oceanic-oceanic divergence

• continental-oceanic divergence

• oceanic-continental convergence

• continental-continental convergence