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The MCQs below are drawn from the Screening Test subject category.
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101
Which type of seismic wave generally causes the greatest destruction at Earth's surface during an earthquake?
A. Primary (P) waves
B. Secondary (S) waves
C. Body waves
D. Surface waves (Love and Rayleigh)
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Correct Option
Explanation
Surface waves (Love and Rayleigh) have larger amplitudes and longer durations at the surface, producing the most damage during earthquakes.
102
On the Mohs hardness scale, which mineral defines the lowest hardness value (1)?
A. Talc
B. Gypsum
C. Calcite
D. Quartz
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Explanation
Talc is the softest mineral and defines Mohs hardness 1, being easily scratched by all other minerals on the scale.
103
At room temperature (~20°C), sound travels fastest in which medium?
A. Air
B. Steel (solid)
C. Water (liquid)
D. Vacuum
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Correct Option
Explanation
Sound travels fastest in solids because of higher elastic modulus and density transmission properties; among the given options, steel (a solid) supports the highest speed.
104
Which cellular process generates the greatest amount of ATP per glucose molecule in aerobic eukaryotic cells?
A. Oxidative phosphorylation (electron transport chain and chemiosmosis)
B. Glycolysis
C. Citric acid (Krebs) cycle
D. Fermentation
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Explanation
Oxidative phosphorylation produces the majority of ATP (~26–34 ATP per glucose) via the electron transport chain and chemiosmosis, far exceeding glycolysis or the Krebs cycle alone.
105
What was the principal significance of Martin Luther’s 95 Theses (1517) for European history?
A. They initiated a public challenge to Church practices and papal authority, sparking the Protestant Reformation.
B. They called for the immediate abolition of all Church sacraments and monastic orders.
C. They established a new Catholic doctrine formally recognized by the papacy.
D. They promoted a unified German nation-state under the pope’s protection.
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Explanation
Luther’s theses attacked the sale of indulgences and questioned ecclesiastical authority, triggering debates that led to the Protestant Reformation.
106
During the Environmental Impact Assessment (EIA) process, the stage that determines whether a full EIA is required is called:
A. Mitigation.
B. Monitoring.
C. Reporting.
D. Screening.
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Explanation
Screening is the initial EIA stage used to decide if a project needs a full assessment, making option d correct.
107
Currently in which country there were massive protests against the economic crisis and oil shortage?
A. Kenya
B. Maldives
C. Indonesia
D. Sri-Lanka
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Explanation
As stated, Sri Lanka experienced massive protests driven by an economic crisis and shortages of fuel.
108
Which planet which is easily visible from the Earth?
A. Venus
B. Mercury
C. Mars
D. Jupitar
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Explanation
Venus is the brightest planet as seen from Earth and is easily visible near sunrise or sunset.
109
The shortest day occurs in the Northern hemisphere is on_____?
A. 22nd December
B. 22nd November
C. 22nd June
D. 22nd March
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Explanation
The shortest day in the Northern Hemisphere occurs on the winter solstice, given here as 22nd December when daylight hours are minimal.
110
The Synonym of Detest?
A. Argue
B. Hate
C. Discover
D. Reveal
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Correct Option
Explanation
Detest means to hate or strongly dislike, so the synonym 'Hate' directly matches the meaning of 'detest.'
