Geology and Earth Structure

The word “recurrence“ does not mean

Directions: Answer the given question based on the following passage:

An earthquake is a tremor of varied intensity in the earth's surface caused by the action of the end genetic forces of the earth. It causes immense damage to life and property of the region if its intensity is measured over 7 on the Richter scale. Studies have shown that over 60% of the country's area comes under the moderate and high seismic zones. In the past, a number of devastating earthquakes have been caused. Tsunamis-Earthquake measuring more than 7 on Richter scale in the sea bed may produce high sea waves called tsunamis. Such tsunamis were caused due to the earthquake near Sumatra coast on 26^th Dec. 2004, which led to a loss of more than 1.5 lakh people in Indonesia, Sri Lanka and India. In India, heavy damage to life and property was caused in Andaman-Nicobar islands and Tamil Nadu coast. Severity of the tsunamis was a little minimised along the coasts having wider continental shelves and luxuriant growth of mangrove forests. Since Andaman area lies in the high seismic zone, the recurrence of tsunamis is not ruled out. The need is early warning system, planting of mangroves and building of protection walls.

How many countries in the world have been affected by tsunamis?

Directions: Answer the given question based on the following passage:

An earthquake is a tremor of varied intensity in the earth's surface caused by the action of the end genetic forces of the earth. It causes immense damage to life and property of the region if its intensity is measured over 7 on the Richter scale. Studies have shown that over 60% of the country's area comes under the moderate and high seismic zones. In the past, a number of devastating earthquakes have been caused. Tsunamis-Earthquake measuring more than 7 on Richter scale in the sea bed may produce high sea waves called tsunamis. Such tsunamis were caused due to the earthquake near Sumatra coast on 26^th Dec. 2004, which led to a loss of more than 1.5 lakh people in Indonesia, Sri Lanka and India. In India, heavy damage to life and property was caused in Andaman-Nicobar islands and Tamil Nadu coast. Severity of the tsunamis was a little minimised along the coasts having wider continental shelves and luxuriant growth of mangrove forests. Since Andaman area lies in the high seismic zone, the recurrence of tsunamis is not ruled out. The need is early warning system, planting of mangroves and building of protection walls.

In this paragraph, “luxuriant growth” pertains to

Directions: Answer the given question based on the following passage:

An earthquake is a tremor of varied intensity in the earth's surface caused by the action of the end genetic forces of the earth. It causes immense damage to life and property of the region if its intensity is measured over 7 on the Richter scale. Studies have shown that over 60% of the country's area comes under the moderate and high seismic zones. In the past, a number of devastating earthquakes have been caused. Tsunamis-Earthquake measuring more than 7 on Richter scale in the sea bed may produce high sea waves called tsunamis. Such tsunamis were caused due to the earthquake near Sumatra coast on 26^th Dec. 2004, which led to a loss of more than 1.5 lakh people in Indonesia, Sri Lanka and India. In India, heavy damage to life and property was caused in Andaman-Nicobar islands and Tamil Nadu coast. Severity of the tsunamis was a little minimised along the coasts having wider continental shelves and luxuriant growth of mangrove forests. Since Andaman area lies in the high seismic zone, the recurrence of tsunamis is not ruled out. The need is early warning system, planting of mangroves and building of protection walls.

Which of the following is/are important measure(s) to minimise the loss of life and property by earthquakes?

Directions: Answer the given question based on the following passage:

An earthquake is a tremor of varied intensity in the earth's surface caused by the action of the end genetic forces of the earth. It causes immense damage to life and property of the region if its intensity is measured over 7 on the Richter scale. Studies have shown that over 60% of the country's area comes under the moderate and high seismic zones. In the past, a number of devastating earthquakes have been caused. Tsunamis-Earthquake measuring more than 7 on Richter scale in the sea bed may produce high sea waves called tsunamis. Such tsunamis were caused due to the earthquake near Sumatra coast on 26^th Dec. 2004, which led to a loss of more than 1.5 lakh people in Indonesia, Sri Lanka and India. In India, heavy damage to life and property was caused in Andaman-Nicobar islands and Tamil Nadu coast. Severity of the tsunamis was a little minimised along the coasts having wider continental shelves and luxuriant growth of mangrove forests. Since Andaman area lies in the high seismic zone, the recurrence of tsunamis is not ruled out. The need is early warning system, planting of mangroves and building of protection walls.

What percentage of the Indian area comes under moderate and high seismic zones?

Directions: Answer the given question based on the following passage:

An earthquake is a tremor of varied intensity in the earth's surface caused by the action of the end genetic forces of the earth. It causes immense damage to life and property of the region if its intensity is measured over 7 on the Richter scale. Studies have shown that over 60% of the country's area comes under the moderate and high seismic zones. In the past, a number of devastating earthquakes have been caused. Tsunamis-Earthquake measuring more than 7 on Richter scale in the sea bed may produce high sea waves called tsunamis. Such tsunamis were caused due to the earthquake near Sumatra coast on 26^th Dec. 2004, which led to a loss of more than 1.5 lakh people in Indonesia, Sri Lanka and India. In India, heavy damage to life and property was caused in Andaman-Nicobar islands and Tamil Nadu coast. Severity of the tsunamis was a little minimised along the coasts having wider continental shelves and luxuriant growth of mangrove forests. Since Andaman area lies in the high seismic zone, the recurrence of tsunamis is not ruled out. The need is early warning system, planting of mangroves and building of protection walls.

Which of the following statements is/are correct?

a. Tectonic earthquakes result from a series of Earth movements brought about by a sudden release of energy during movements in the Earth’s crust. b. The Indian plate is moving at a speed of one centimetre per year towards the North and Northeastern direction. c. Earth scientists have come up with a theory of emergence of a fault line along the fault line and the possible breaking down of the Indian plate.

The passage is an introduction to the

Directions: Read the passage carefully and answer the question that follows.


The word “continent” actually meant mainland in the past, when the Greeks and Romans ruled the western world. The common view is that a big mass of land that is bigger than a single country and separated from other big masses of land either by sea, mountains or deserts should be a continent. However, a continent is defined upon the needs of a person. Historians divide the world into continents in a different manner. Geography teachers see it differently. Geologists see it from their own viewpoint and people of different countries divide the world into continents to suit their own purposes. There is quite a bit of confusion in the world over the number of continents, their names and their areas. For example, in Europe, they still believe the world to be divided into five continents as represented in the five rings of the Olympic flag. However, Americans divide the Earth’s land mass into seven continents: North America, South America, Europe, Asia, Africa, Australia, and Antarctica, for such division is the most reasonable and easiest for studying the world.

The author wants to emphasise that

Directions: Read the passage carefully and answer the question that follows.


The word “continent” actually meant mainland in the past, when the Greeks and Romans ruled the western world. The common view is that a big mass of land that is bigger than a single country and separated from other big masses of land either by sea, mountains or deserts should be a continent. However, a continent is defined upon the needs of a person. Historians divide the world into continents in a different manner. Geography teachers see it differently. Geologists see it from their own viewpoint and people of different countries divide the world into continents to suit their own purposes. There is quite a bit of confusion in the world over the number of continents, their names and their areas. For example, in Europe, they still believe the world to be divided into five continents as represented in the five rings of the Olympic flag. However, Americans divide the Earth’s land mass into seven continents: North America, South America, Europe, Asia, Africa, Australia, and Antarctica, for such division is the most reasonable and easiest for studying the world.