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Q) Which rock is commonly formed from cooled lava?
Correct Answer - Option
(A)
Explanation :
Basalt is the most common volcanic rock, formed from rapid cooling of lava.
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Q) Which of the following is a dormant volcano in Tanzania?
Correct Answer - Option
(A)
Explanation :
Mount Kilimanjaro in Tanzania is a dormant stratovolcano and the highest peak in Africa.
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Q) Which type of volcanic eruption produces tall, explosive columns of ash?
Correct Answer - Option
(B)
Explanation :
Plinian eruptions are explosive, producing towering columns of ash and pumice into the atmosphere.
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Q) Which of these volcanoes is in Japan?
Correct Answer - Option
(B)
Explanation :
Mount Fuji is Japan’s most famous stratovolcano and a cultural symbol.
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Q) What is the main component of basaltic lava?
Correct Answer - Option
(B)
Explanation :
Basaltic lava is low in silica, making it less viscous and allowing it to flow easily.
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Q) Which oceanic island nation is entirely volcanic in origin?
Correct Answer - Option
(A)
Explanation :
Iceland was formed entirely from volcanic activity along the Mid-Atlantic Ridge.
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