Tag: development of landforms

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Multiple choice geography volcanoes volcanism earthquake and volcanoes development of landforms earthquakes and volcanoes types and features of earthquakes and volcanoes

There are at least _______ known  active volcanoes.

  1. 450

  2. 550

  3. 160

  4. none of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The number of potentially active volcanoes on Earth is estimated to be about 1500, with 550 of these having erupted in recorded history. The total number of volcanoes throughout the entire world is unknown because not all volcanoes are accessible, known and recorded.

Multiple choice geography volcanoes volcanism earthquake and volcanoes development of landforms earthquakes and volcanoes types and features of earthquakes and volcanoes

In which one of the following islands of India is an active volcano found?

  1. Car Nicobar Island

  2. Nancowry Island

  3. Barren Island

  4. Maya Bunder Island
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • Barren Island is located in the Andaman and Nicobar group of islands in India. It is the only active volcano in India.
  • Hence option C is correct.
Multiple choice geography volcanoes volcanism earthquake and volcanoes development of landforms earthquakes and volcanoes types and features of earthquakes and volcanoes

Large depression formed by volcanic eruption is called as ________.

  1. Caldera lake

  2. Crater lake

  3. Vane

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A caldera is a large depression formed when a volcano erupts and collapses. During a volcanic eruption, magma present in the magma chamber underneath the volcano is expelled, often forcefully.

Multiple choice geography volcanoes volcanism earthquake and volcanoes development of landforms earthquakes and volcanoes types and features of earthquakes and volcanoes

Mt. Fujiyama and Mt. Vesuvius are __________ volcanoes.

  1. Dormant

  2. External

  3. Internal

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Mount Fuji is in a Critical State and Could Be Ready To Blow. After 307 years, the massive active volcano in Japan may be due for another eruption as a result of a buildup of pressure from the 9.0-magnitude earthquake that hit the country's eastern coast in 2011.

Mount Vesuvius is the only active volcano in mainland Europe and has produced some of the continent's largest volcanic eruptions. Located on Italy's west coast, it overlooks the Bay and City of Naples and sits in the crater of the ancient Somma volcano.

Multiple choice geography volcanoes volcanism earthquake and volcanoes development of landforms earthquakes and volcanoes types and features of earthquakes and volcanoes

Vast basin-shaped volconic mouth is _________.

  1. caldera

  2. crust

  3. crater

  4. vent
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Volcanic materials of various sorts are ejected through a pipe and the vent situated at the top of the pipe. The enlarged from of the volcanic vent is known a volcanic crater and caldera.

Multiple choice geography volcanoes volcanism earthquake and volcanoes development of landforms earthquakes and volcanoes types and features of earthquakes and volcanoes

Which one of the following is an active volcano?

  1. Mt. Arata of Turkey

  2. Mt. Kulal of Kenya

  3. Mt. Fujiyama of Japan

  4. Mt. Stromboli and Mt. Etna in Italy
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Stromboli is one of the most active volcanoes on Earth and has been erupting almost continuously since 1932. Because it has been active for much of the last 2,000 years and its eruptions are visible for long distances at night, it is known as the "Lighthouse of the Mediterranean". It is among the world's most visited volcanoes.

Mount Etna is Europe's highest and most active volcano. Towering above the city of Catania on the island of Sicily, it has been growing for about 500,000 years and is in the midst of a series of eruptions that began in 2001.

Multiple choice geography volcanoes volcanism earthquake and volcanoes development of landforms earthquakes and volcanoes types and features of earthquakes and volcanoes

Which one of the following flows out from a volcano?

  1. Water

  2. Lava

  3. Igneous rocks

  4. All of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Lava flows from the volcano. Molten rock materials are generally called magma below the earth's surface while when they come out at the earth's face they are called lava. Lava is very hot and the temperature ranges between 700 to 1200 degrees Celsius.

Multiple choice geography volcanoes volcanism earthquake and volcanoes development of landforms earthquakes and volcanoes types and features of earthquakes and volcanoes

The funnel-shaed hollow at the top of the cone of a volcano is called ___________.

  1. crater

  2. caldera

  3. vent

  4. magma
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A volcanic crater is a funnel shaped hollow at the top of the vent. It is formed as lava and gas and ash are blasted upwards from the main vent. Material falls back down to earth around the vent and slowly piles up forming a rim around it. The inside of the crater is kept clear by the force of upward moving material constantly removing any debris which falls there.

Multiple choice geography volcanoes volcanism earthquake and volcanoes development of landforms earthquakes and volcanoes types and features of earthquakes and volcanoes

The liquid that flows out of a volcano is called ________.

  1. Lava

  2. Magma

  3. Mantle

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Lava is the molten rock expelled by a volcano during an eruption. A lava flow is a moving/outpouring of lava, which is created during a non-explosive effusive eruption. When it has stopped moving, lava solidifies to form igneous rock. The term lava flow is commonly shortened to lava. Although lava can be up to 100,000 times more viscous than water, lava can flow great distances before cooling and solidifying because of its thixotropic and shear thinning properties.