Question : Most of the devastating earthquakes are usually caused by
Option 1: Eustatic movement
Option 2: Isostatic movement
Option 3: Collision of earth plates
Option 4: Volcanic eruptions.
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Correct Answer: Collision of earth plates
Solution : The correct answer is collision of earth plates.
Earthquakes literally means the shaking of earth. It is caused by the sudden release of energy at any point inside earth because of abrupt movement of tectonic plates. The worst earthquakes are usually caused because of the collision of tectonic plates. The point inside the earth where the earthquake begins is known as hypocenter and the point just above it on the earth's crust is known as epicenter. This sudden release of energy causes the seismic wave movements on the earth crust. Seismic waves are of two types- surface waves and body waves. Surface waves are the destructive waves, while body waves are of two types P waves and S waves.
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Question : Tides are caused by the gravitational pull of the
Option 1: Earth on the Moon
Option 2: Earth on the Sun
Option 3: Sun and Moon on the Earth
Option 4: Moon on the Earth
Question : Intensity of gravitational field of earth is maximum at
Option 1: Poles
Option 2: Equator
Option 3: Centre of earth
Option 4: Surface
Question : Direction: Arrange the given words in the meaningful and ascending order (distance from the Sun) and select the option indicating the correct order.
1. Venus 2. Earth 3. Mars 4. Mercury 5. Jupiter
Option 1: 4, 2, 1, 3, 5
Option 2: 4, 2, 1, 5, 3
Option 3: 4, 1, 2, 3, 5
Option 4: 4, 1, 2, 5, 3
Question : The movement inside the earth's crust is studied by which of the following?
Option 1: Geology
Option 2: Seismology
Option 3: Plate tectonics
Option 4: Pantograph
Question : The land measures of the second Pandyan Empire was mentioned in
Option 1: Thalavaipuram Copper Plates
Option 2: Uttirameru Inscription
Option 3: Kudumiyammalai Inscription
Option 4: Kasadudi Copper Plates
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