NTA UGC NET/JRF Exam, Dec., 2023 Geography

Total Questions: 100

91. Read the following passage and answer the following questions

One of the main tenets of the plate tectonics theory is that plates move as somewhat rigid units relative to all other plates. As plates move, the distance between two | conditions on different plates gradually changes. Major interactions of plates occur along their boundaries.
The continental drift theory, conventional currents concept and sea floor spreading concept provided the base for the theory of plate tectonics. It explains formation of first and second order landforms. It explains several other phenomena such as mountain building, sea floor trench formation, volcanism, and seismicity.
San Andreas fault is an example of ____

Correct Answer: (b) Transform boundary
Solution:

The San Andreas Fault is an example of a Transform Boundary. Along conservative margins, two plates slide past each other, which creates a Transform Fault. It is called conservative because neither is the plate destroyed nor is new crust created along this boundary.

92. Movement of plates is gradually increasing distance between ________.

Correct Answer: (a) New York and London
Solution:

The distance between New York and London is increasing due to plate movement. The region between New York and London contains the MidOceanic Ridge, which is part of a Divergent Plate Boundary. New crust is being created along constructive or divergent plate boundaries. This process occurs along the Mid-Oceanic Ridge where two plates diverge in opposite directions.

93. _______ is NOT an evidence in support of sea floor spreading.

Correct Answer: (c) Tidal force
Solution:

Tidal Force is not evidence in support of Seafloor Spreading, whereas the age of sediments, paleomagnetism, and the mapping of volcanic islands and seamounts are evidence. The Seafloor Spreading theory was first proposed by Harry Hess in 1960| (NCERT-1961). According to Harry Hess, the seafloor spreads (along the Mid-Oceanic Ridge), and crust is destroyed along ocean trenches.

94. Andees mountains are located at the convergent zone of _______.

Correct Answer: (d) Nazca plate and South American plate
Solution:

The Andes Mountains are located in the convergent zone of the Nazca Plate and the South American Plate. When two plates converge face-to-face, material is consumed along these margins by subduction into the lower mantle; that is, the plate material descends beneath the edge of the plate, and the plate margins are reduced.
This plate boundary is also called a Convergent Boundary. The Nazca Plate is situated between the South American and Pacific Plates, and the South American Plate includes the western Atlantic floor and is separated from the North American and Caribbean Plates.

95. ________ is located on divergent plate boundary.

Correct Answer: (d) Iceland
Solution:

Iceland is situated on a Divergent Plate Boundary. The Icelandic Plate is part of the MidOceanic Ridge. It creates new crust along constructive plate margins. This process occurs as two plates diverge in opposite directions along the Mid-Oceanic Ridge.

96. Read the following Passage and answer the following questions

Electromagnetic energy sensors are operated from airborne and spaceborne platforms to assist in inventorying, mapping and monitoring earth resources. The two basic processes involved are data acquisition and data analysis.
The wavelength ranges in which the atmosphere is particularly transmissive of energy are referred to as atmoshpheric windows. Irrespective of its source, all radiation detected by remote sensors passes through some distance or path length, of the atmoshpere. The path length involved can vary widely.
The variations in spectral reflectance curves help in identification of different earth surface features and their characteristics. Satellites generally operate in two orbits-the sunsynchronous and geostationary.
Remote sensors are charactrized by spatial, spectral, temporal and radiometric resolutions that enable the extraction of useful information pertaining to different terrain conditions. Indian Space Research Organization (ISRO) has made remarkable progress towards building the space infrastructure-as the community resource to leapfrog the developmental processes. The Indian National Satellite System, the Earth Observation System and Satellite Navigation system are the main components of the Indian satellites.
____ is NOT part of data acquisition process.

Correct Answer: (b) GIS
Solution:GIS is not part of the data acquisition process, whereas the Platform, Sensor, and Atmospheric Window are part of the data acquisition process.

97. ______ belongs to the Earth Observation System component of the Indian satellites.

Correct Answer: (d) Oceansat-2
Solution:

'Oceansat-2' is related to the Earth Observation Satellite component of the Indian satellite system, while Kalpana-1, GSAT-29, and IRNSS-1A are related to the Geostationary Satellite component. Some other Earth Observation satellites include ResourceSat1 (IRS-P6), Cartosat, Cartosat-2A, RISAT-2, and RISAT-1.

98. Red band is an example of _______.

Correct Answer: (a) Spectral resolution
Solution:

The Red Band is an example of Spectral Resolution. Spectral resolution indicates the wavelength intervals of different bands. The wavelength interval marked at 50% of a detector's peak response is called the spectral resolution of that detector.
Several spectral bands in the electromagnetic spectrum indicate luminous density. Radiometric resolution is the division of the total range (range) of the signal output by the sensor into several parts, which allows the representation of gray levels in different forms.

99. The atmospheric path length is shortest in case of_______.

Correct Answer: (c) Airborne Thermal sensing
Solution:The Atmospheric Path Length is shortest in the case of Airborne Thermal Sensing.

100. ________ is Not an airborne platform

Correct Answer: (d) Camera
Solution:A Camera is not an Airborne Platform