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Showing MCQs of Subject - Geography and Examination - UPSC | Page 400

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Rati Dubey • 8.55K Points
Tutor III

Q. Which part of the volcano stores magma before eruption?

  • (A) Vent
  • (B) Caldera
  • (C) Magma chamber
  • (D) Crater
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Correct Answer - Option (C)

Explanation:
The magma chamber is the underground reservoir that holds molten rock before eruption.

R

Rati Dubey • 8.55K Points
Tutor III

Q. Which of these is a hotspot volcano?

  • (A) Mount Fuji
  • (B) Mauna Loa
  • (C) Mount Vesuvius
  • (D) Mount Pinatubo
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Correct Answer - Option (B)

Explanation:
Mauna Loa in Hawaii is formed by a hotspot, not by plate boundary activity.

R

Rati Dubey • 8.55K Points
Tutor III

Q. Which volcanic island is also the capital of Iceland?

  • (A) Stromboli
  • (B) Reykjavik
  • (C) Heimaey
  • (D) Hekla
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Correct Answer - Option (C)

Explanation:
Heimaey is part of Iceland’s Westman Islands and was affected by a major eruption in 1973.

R

Rati Dubey • 8.55K Points
Tutor III

Q. Which volcano erupted in 1883 causing tsunamis that killed over 36,000 people?

  • (A) Krakatoa
  • (B) Tambora
  • (C) Etna
  • (D) Fuji
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Correct Answer - Option (A)

Explanation:
The eruption of Krakatoa in 1883 caused massive tsunamis and global climate effects.

R

Rati Dubey • 8.55K Points
Tutor III

Q. What is a fissure eruption?

  • (A) Eruption through a circular vent
  • (B) Eruption through cracks in the Earth’s crust
  • (C) Eruption under the ocean
  • (D) Eruption from a caldera
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Correct Answer - Option (B)

Explanation:
Fissure eruptions occur when magma escapes through long cracks instead of a central vent.

R

Rati Dubey • 8.55K Points
Tutor III

Q. Which volcano is known as the 'Lighthouse of the Mediterranean'?

  • (A) Etna
  • (B) Stromboli
  • (C) Vesuvius
  • (D) Santorini
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Correct Answer - Option (B)

Explanation:
Stromboli is nicknamed the 'Lighthouse of the Mediterranean' because of its continuous eruptions visible from afar.

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Rati Dubey • 8.55K Points
Tutor III

Q. Which rock is commonly formed from cooled lava?

  • (A) Basalt
  • (B) Granite
  • (C) Sandstone
  • (D) Limestone
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Correct Answer - Option (A)

Explanation:
Basalt is the most common volcanic rock, formed from rapid cooling of lava.

R

Rati Dubey • 8.55K Points
Tutor III

Q. Which of the following is a dormant volcano in Tanzania?

  • (A) Mount Kilimanjaro
  • (B) Mount Elgon
  • (C) Mount Cameroon
  • (D) Mount St. Helens
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Correct Answer - Option (A)

Explanation:
Mount Kilimanjaro in Tanzania is a dormant stratovolcano and the highest peak in Africa.

R

Rati Dubey • 8.55K Points
Tutor III

Q. Which type of volcanic eruption produces tall, explosive columns of ash?

  • (A) Hawaiian
  • (B) Plinian
  • (C) Strombolian
  • (D) Icelandic
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Correct Answer - Option (B)

Explanation:
Plinian eruptions are explosive, producing towering columns of ash and pumice into the atmosphere.

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Rati Dubey • 8.55K Points
Tutor III

Q. Which of these volcanoes is in Japan?

  • (A) Mount Pinatubo
  • (B) Mount Fuji
  • (C) Mount Etna
  • (D) Mount Kilimanjaro
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Correct Answer - Option (B)

Explanation:
Mount Fuji is Japan’s most famous stratovolcano and a cultural symbol.

R

Rati Dubey • 8.55K Points
Tutor III

Q. What is the main component of basaltic lava?

  • (A) High silica
  • (B) Low silica
  • (C) High water content
  • (D) Carbon dioxide
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Correct Answer - Option (B)

Explanation:
Basaltic lava is low in silica, making it less viscous and allowing it to flow easily.

R

Rati Dubey • 8.55K Points
Tutor III

Q. Which oceanic island nation is entirely volcanic in origin?

  • (A) Iceland
  • (B) Hawaii
  • (C) Philippines
  • (D) Japan
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Correct Answer - Option (A)

Explanation:
Iceland was formed entirely from volcanic activity along the Mid-Atlantic Ridge.