Physical Geography - Geophysical Phenomena - MCQs with answers - Part II

ANSWER: c. both

Alfred Wegener propounded the Continental drift theory in 1912 to explain the global climatic changes. According to the theory, the super continent called PANGEA started breaking and drifting away leading to the present continental set up.

ANSWER: a. F. B Taylor

F B Taylor gave the concept of horizontal displacement of the continents in the year 1908. Through this theory, he tried to explain the problems of the origin of the folded mountains of the tertiary period.

ANSWER: d. all the above

The term Tsunami is a Japanese word used to mean a harbour wave. They are large ocean waves that are a resultant of large undersea disturbances. That is , it is an invasion of water on the land because of the dislocation in the sea floor.

ANSWER: a. Pacific plate

The plate tectonics theory was put forth in 1969. It has two components- geometric part and the kinematic part. The geometric part is divided into seven major plates and 12 minor plates. The kinematic part deals with the divergent boundaries, convergent boundaries and a transform boundary.

ANSWER: b. Juan De Fuca plate

According to the plate tectonics theory given in 1969, oceans and continents are non-permanent. There are several individual segments called plates in the lithosphere. The smallest plate is Juan De Fuca plate which is off the western Coast of North America.

ANSWER: c. Both

According to the plate tectonics theory, the boundaries that can be formed as a result of the movement of the plates can either be convergent or divergent or transform boundary. When a collision occurs, it can be either between a oceanic plate and a continental plate or between 2 oceanic plates or 2 continental plates.

ANSWER: c. Both

A transform fault is a resultant of two plates sliding each other without converging or diverging from each other. San Andreas Fault is one of the most seismically active faults of the world.

ANSWER: a. Hary Hess

The concept of sea floor spreading was given by Hary Hess in the year 1960. He wrote a book titled "An Essay in Geopoetry". He argued that the ocean bottom is also not permanent and is recycled and its shape is changed.

ANSWER: a. I only

Mercalli scale is used to measure the intensity or the destruction caused by the occurance of an earthquake. Zone 1 covers intensity of 5 or below, zone 2 covers intensity 6, zone 3 covers intensity 7 , zone 4 covers intensity 8 and zone 5 covers intensity 9 and above. Accordingly, zone 1 is the least seismic prone zone.

ANSWER: d. All the above

Based on the Mercalli scale , the zone 5 records intensity of 9 and abobe , hence these regions are the highest seismic prone zone. The Richter Scale measures the magnitude of an earthquake. This zone has an approximate magnitude of 8 or more on the Richter scale.

ANSWER: d. None

There are three major types of volcanoes- the composite, cinder cone and shield volcanoes. Off all the three, composite volcanoes often form the tallest and largest volcanoes. They are also more dangerous and explosive than all other volcanoes.

ANSWER: a. 1A, 2B, 3C

These are three major types of volcanoes. A composite volcano erupted at Saint Helens in Washington, in 1980. Paricutin is in Mexico and Muana Loa is in Hawaii. Of all the 3, composite volcano is more dangerous and a shield volcano has much smaller eruptions.

ANSWER: a. 1A, 2B, 3C

A volcano refers to an opening or an outburst in the surface or crust of a planet. They are found when tectonic plates are converging or diverging from each other. They are also formed by hot spots.

ANSWER: c. Both

Composite volcanoes form the largest and tallest of all the volcanoes. They are also more dangerous than the other volcanoes. The Barren Island is located in the Andaman Sea . The first volcanic eruption here was recorded in 1787.

ANSWER: c. both

Alfred Wegener propounded the Continental drift theory in 1912 to explain the global climatic changes. According to the theory, the super continent called PANGEA started breaking and drifting away leading to the present continental set up.

ANSWER: a. F. B Taylor

F B Taylor gave the concept of horizontal displacement of the continents in the year 1908. Through this theory, he tried to explain the problems of the origin of the folded mountains of the tertiary period.

ANSWER: d. all the above

The term Tsunami is a Japanese word used to mean a harbour wave. They are large ocean waves that are a resultant of large undersea disturbances. That is , it is an invasion of water on the land because of the dislocation in the sea floor.

ANSWER: a. Pacific plate

The plate tectonics theory was put forth in 1969. It has two components- geometric part and the kinematic part. The geometric part is divided into seven major plates and 12 minor plates. The kinematic part deals with the divergent boundaries, convergent boundaries and a transform boundary.

ANSWER: b. Juan De Fuca plate

According to the plate tectonics theory given in 1969, oceans and continents are non-permanent. There are several individual segments called plates in the lithosphere. The smallest plate is Juan De Fuca plate which is off the western Coast of North America.

ANSWER: c. Both

According to the plate tectonics theory, the boundaries that can be formed as a result of the movement of the plates can either be convergent or divergent or transform boundary. When a collision occurs, it can be either between a oceanic plate and a continental plate or between 2 oceanic plates or 2 continental plates.

ANSWER: c. Both

A transform fault is a resultant of two plates sliding each other without converging or diverging from each other. San Andreas Fault is one of the most seismically active faults of the world.

ANSWER: a. Hary Hess

The concept of sea floor spreading was given by Hary Hess in the year 1960. He wrote a book titled "An Essay in Geopoetry". He argued that the ocean bottom is also not permanent and is recycled and its shape is changed.

ANSWER: a. I only

Mercalli scale is used to measure the intensity or the destruction caused by the occurance of an earthquake. Zone 1 covers intensity of 5 or below, zone 2 covers intensity 6, zone 3 covers intensity 7 , zone 4 covers intensity 8 and zone 5 covers intensity 9 and above. Accordingly, zone 1 is the least seismic prone zone.

ANSWER: d. All the above

Based on the Mercalli scale , the zone 5 records intensity of 9 and above , hence these regions are the highest seismic prone zone. The Richter Scale measures the magnitude of an earthquake. This zone has an approximate magnitude of 8 or more on the Richter scale.

ANSWER: d. None

There are three major types of volcanoes- the composite, cinder cone and shield volcanoes. Off all the three, composite volcanoes often form the tallest and largest volcanoes. They are also more dangerous and explosive than all other volcanoes.

ANSWER: a. 1A, 2B, 3C

These are three major types of volcanoes. A composite volcano erupted at Saint Helens in Washington, in 1980. Paricutin is in Mexico and Muana Loa is in Hawaii. Of all the 3, composite volcano is more dangerous and a shield volcano has much smaller eruptions.

ANSWER: a. 1A, 2B, 3C

A volcano refers to an opening or an outburst in the surface or crust of a planet. They are found when tectonic plates are converging or diverging from each other. They are also formed by hot spots.

ANSWER: c. Both

Composite volcanoes form the largest and tallest of all the volcanoes. They are also more dangerous than the other volcanoes. The Barren Island is located in the Andaman Sea . The first volcanic eruption here was recorded in 1787.