TYPES OF VOLCANO

The largest and Most

violent type of eruption

• Phreatic

• Strombolian

• Plinian

• Phreatomagmatic

______eruption get their names from the Kilauea Volcano on the Big Island of Hawaii, which is famous for producing spectacular fire fountains

• Plinian

• Hawaiian

• Phreatomagmatic

• Phreatic

______eruption due to the contact between water and magma and can be very explosive. The water can be from groundwater, hydrothermal systems, surface runoff, a lake, or the sea

• Phreatomagmatic

• Strombolian

• Pelean

• Vulcanian

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This eruptions create powerful explosions in which material can travel faster than 350 meters per second (800 mph) and rise several kilometers into the air.

• PHREATIC

• HAWAIIAN

• VULCANIAN

• SURTSEYAN

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Which of the following should you pay attention to before a volcanic eruption?

• frequents ejection of volcanic ash

• frequents earthquake

• decreased ambient temperature

• increase in high of volcano

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Why is there good soil after a volcano eruption?

• It comes from lava the lava dries down on the soil

• Soil near volcanoes are naturally beneficial

• Volcanic materials contains good bacterias that cultivate the soil

• Volcanic ash contains minerals that are beneficial to plants which will break down and get mixed with soil

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Volcanoes are Earth’s geologic architects. They’ve created more than eighty percent (80%) of planet’s surface, laying the foundation that has allowed life to thrive. In the Philippines there are about three hundred (300) volcanoes and twenty-four (24) of these are active volcanoes. Why Philippines is home to many volcanoes?

• It is located long the Ring of Fire

• It is near at the Pacific Ocean

• It is an Archipelago

• It is having many beautiful tourist spots

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Which of the following Precautionary measures usually done before the volcanic eruption happens?

• Cover our nose and mouth

• Removed ash deposit on our roof

• Prepared a Go Bag ( essentials)

• Stay indoor

Why does a thick layer of volcanic ash can be heavy enough to collapse the roofs of buildings?

• it is because ash is solid

• it is because ash is heavier as it cools

• it is because ash cannot be blown by winds

• it is because ash consists of tiny fragments of rocks that become heavy as they pile up

Which ingredient in magma determines whether an eruption is explosive or quiet?

• Amount of rock.

• Amount of obsidian rock.

• Amount of silica.

• all of the above

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