21. Which one of the following countries is NOT a member of SAFTA (South A

Which one of the following countries is NOT a member of SAFTA (South Asian Free Trade Agreement)?

India
Bangladesh
Myanmar
Pakistan
This question was previously asked in
UPSC Geoscientist – 2021
Myanmar is not a member country of the South Asian Free Trade Area (SAFTA).
SAFTA comprises the member states of the South Asian Association for Regional Cooperation (SAARC).
The SAARC member countries are Afghanistan, Bangladesh, Bhutan, India, Maldives, Nepal, Pakistan, and Sri Lanka. Myanmar is a Southeast Asian country.

22. The Headquarters of the East Central Railway of India is located at:

The Headquarters of the East Central Railway of India is located at:

Kolkata
Bhubaneswar
Patna
Hajipur
This question was previously asked in
UPSC Geoscientist – 2021
The Headquarters of the East Central Railway zone of Indian Railways is located at Hajipur, Bihar.
Indian Railways is divided into zones for administrative purposes, each with a designated headquarters city.
Kolkata hosts the headquarters for Eastern Railway and South Eastern Railway. Bhubaneswar is the headquarters for East Coast Railway. Patna is a major city in Bihar but not the headquarters of East Central Railway.

23. Urban sprawl takes place when:

Urban sprawl takes place when:

residential densities increase within an urban area.
an urban area expands into the countryside.
population of towns and cities decline due to out-migration.
a rural area expands into the neighbouring city.
This question was previously asked in
UPSC Geoscientist – 2021
Urban sprawl is characterized by the outward expansion of cities and their suburbs into the surrounding low-density rural land. It results in dispersed, low-density development with a heavy reliance on automobiles.
The key aspect of urban sprawl is the physical expansion of the urban area into previously non-urban (often countryside) areas.
Increased residential densities within an urban area (densification) is the opposite of sprawl. Population decline in cities due to out-migration might be a consequence or related phenomenon but is not the definition of sprawl itself. The phrase “a rural area expands into the neighbouring city” is inaccurate; it is the urban activities and built environment that expand into rural land.

24. The Fujita Intensity Scale, developed by late T. Theodore Fujita (Univ

The Fujita Intensity Scale, developed by late T. Theodore Fujita (University of Chicago) is used for measuring the intensity of:

Earthquakes
Rainfall
Tornadoes
Volcanic eruptions
This question was previously asked in
UPSC Geoscientist – 2021
The Fujita Scale, developed by T. Theodore Fujita, is a scale used to classify the intensity of tornadoes based on the damage they cause. It was later superseded by the Enhanced Fujita Scale (EF-Scale).
The question specifically mentions the scale developed by T. Theodore Fujita for measuring intensity.
Earthquakes are measured using scales like the Richter or Moment Magnitude scale. Rainfall is measured in units of depth. Volcanic eruptions are measured using the Volcanic Explosivity Index (VEI).

25. Which one among the following river basins has the highest level of gr

Which one among the following river basins has the highest level of ground water utilisation?

Mahanadi
Godavari
Krishna
Kaveri
This question was previously asked in
UPSC Geoscientist – 2021
Based on data from the Central Ground Water Board (CGWB) regarding groundwater development (utilization as a percentage of replenishable groundwater resource), the Kaveri (Cauvery) basin typically shows a very high level of groundwater utilization among the options provided.
Basins in parts of South India and North West India often face significant groundwater stress due to intensive irrigation, high population density, and urbanization.
While all these basins utilize groundwater, the Kaveri basin, particularly in its delta region and other intensely cultivated areas within Tamil Nadu and Karnataka, has a very high level of groundwater extraction, leading to significant stress on the resource and categorization as over-exploited in many blocks.

26. Roughly conical hills, composed of sorted glacio-fluvial deposits, are

Roughly conical hills, composed of sorted glacio-fluvial deposits, are called:

Erratics
Drumlins
Kames
Eskers
This question was previously asked in
UPSC Geoscientist – 2021
Kames are irregular, roughly conical hills composed of stratified sand and gravel deposited by meltwater streams at the edge or on the surface of a retreating glacier, or in contact with stagnant glacial ice.
The description “roughly conical hills, composed of sorted glacio-fluvial deposits” perfectly matches the characteristics of Kames.
Erratics are large boulders transported and deposited by ice. Drumlins are elongated, streamlined hills formed by glacial ice, composed of till (unsorted). Eskers are long, sinuous ridges formed by meltwater streams flowing within or beneath a glacier.

27. Which one of the following is a classic example of an Entrepôt Port?

Which one of the following is a classic example of an Entrepôt Port?

Mumbai
Singapore
Maracaibo
San Francisco
This question was previously asked in
UPSC Geoscientist – 2021
An entrepôt port is a port where goods are imported, stored, and then re-exported, often after processing, without being subject to import duties. It acts as a major transhipment and distribution centre for trade.
Singapore is a prime example of an entrepôt port due to its strategic location along major shipping routes and its large-scale transhipment activities, serving as a regional hub for trade.
Mumbai, Maracaibo, and San Francisco are major ports handling significant trade, but Singapore’s economy and port operations are fundamentally built around its role as an entrepôt, facilitating trade flow between different regions.

28. Cultivable land, which is left uncultivated for more than a year but l

Cultivable land, which is left uncultivated for more than a year but less than five years, is known as:

cultivable waste land.
current fallow land.
fallow land other than current fallow land.
barren and waste land.
This question was previously asked in
UPSC Geoscientist – 2021
According to land use classification systems, particularly those used in India, land that has been left uncultivated for more than one agricultural year but less than five agricultural years is categorized as ‘Fallow land other than current fallow land’.
Current fallow land is land left uncultivated for the current agricultural year only. Cultivable waste land is land available for cultivation but not cultivated for more than five consecutive years.
Barren and waste land includes land that cannot be brought under cultivation without high expenses, such as rocky areas, deserts, etc.

29. Thermal pollution is:

Thermal pollution is:

discharge of waste heat into the atmosphere or ocean from increasing use of energy.
atmospheric warming due to emission of green house gasses.
heat waves during extreme summer.
heat trapped in the atmosphere due to dust storm.
This question was previously asked in
UPSC Geoscientist – 2021
Thermal pollution is the degradation of water quality or air quality by any process that changes the ambient temperature. A common cause is the discharge of heated water from industrial processes or power generation into natural water bodies or the release of waste heat into the atmosphere.
It specifically refers to the release of waste heat from human activities into the environment.
While thermal pollution primarily concerns water bodies where temperature changes have significant ecological impacts (reducing dissolved oxygen, affecting aquatic life), the discharge of waste heat into the atmosphere from increasing energy use is also considered a form of thermal pollution, contributing to localized warming.

30. Naturally occurring green house gases keeps the Earth warmer nearly

Naturally occurring green house gases keeps the Earth warmer nearly by:

20 °C
23 °C
30 °C
33 °C
This question was previously asked in
UPSC Geoscientist – 2021
Naturally occurring greenhouse gases (like water vapour, carbon dioxide, methane, etc.) trap heat in the Earth’s atmosphere through the greenhouse effect. This process warms the planet’s surface significantly.
Without the natural greenhouse effect, Earth’s average surface temperature would be about -18°C. With it, the average temperature is around +15°C.
The difference between these two temperatures (-18°C and +15°C) is approximately 33°C. This is the warming effect provided by naturally occurring greenhouse gases. Human activities emitting additional greenhouse gases enhance this natural effect, leading to global warming.

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