Geography · General Awareness

Geology and Earth Structure

1,268 Questions

Geology and Earth Structure explores the physical composition of the planet, including its layers, tectonic plates, and seismic activity. This topic is a core component of geography and general science sections in various competitive exams. Reviewing these concepts builds a solid foundation for answering questions related to natural phenomena.

Layers of the EarthTectonic PlatesEarthquakes and VolcanoesGeomagnetism ApplicationsGeophysical MethodsLandform Formation

Geology and Earth Structure Questions

Multiple choice physics structure of earth seismic waves and tsunami causes of earthquakes origin of earth and its internal energy transfer of charge lightning safety

Tremors on the earth can also be caused when?

  1. Valcano erupts

  2. Metero hits the earth

  3. Underground nuclear explosion

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Earthquakes and tremors can be triggered by various geological and anthropogenic activities, including volcanic eruptions, meteorite impacts, and underground nuclear testing.

Multiple choice physics structure of earth seismic waves and tsunami causes of earthquakes origin of earth and its internal energy transfer of charge lightning safety
The inner most part or the centre of the Earth is known as ________.

  1. outer core

  2. inner core

  3. mantle

  4. crust
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Earth consist of core, mantle and crust. Core is the centre of the Earth. Core, again, consists of inner core and outer core. Inner core is inner most part, or, the centre of the Earth.

Multiple choice physics structure of earth seismic waves and tsunami causes of earthquakes origin of earth and its internal energy transfer of charge lightning safety

Fill in the blank:

Most destructive earthquakes have magnitudes _______ on the Richter scale.

  1. $4$
  2. $7$
  3. less than $7$
  4. higher than $7$
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

An earthquake of magnitude 7 is found to be destructive. And, obviously, most destructive earthquakes are of magnitude higher than 7 on the Richter scale.

Multiple choice physics structure of earth seismic waves and tsunami causes of earthquakes origin of earth and its internal energy transfer of charge lightning safety

An earthquake of magnitude $7$ or more in Richter scale is a _____ one?

  1. Stronger

  2. Weaker

  3. Medium

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

The Richter scale is logarithmic. An earthquake of magnitude 7 or higher is considered a major or strong earthquake capable of causing significant damage.

Multiple choice physics structure of earth seismic waves and tsunami causes of earthquakes origin of earth and its internal energy transfer of charge lightning safety

The movement of Earth's plates causes

  1. Lightening

  2. Cyclons

  3. Earthquake

  4. Thunderstorms
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The movement of Earth's plates causes Earthquake. Earth's crust is broken up into large pieces called tectonic plates. Tectonic plates are giant pieces of the Earth's crust that fit together and move around on the Earth's surface. Tectonic plates are constantly moving slowly, but sometimes friction between them causes them to lock together and become unable to move. The rest of the plates carry on moving, which leads to increased pressure on the locked section. Eventually, the locked section succumbs to the pressure, and the plates move past each other rapidly. This movement causes a tectonic earthquake. The waves of released energy move through the Earth's crust and cause the shaking we feel at an earthquake site.