Q. How does the author support their argument about the impact of climate change on wildlife? (2023)
A.
By providing statistical data.
B.
By sharing personal experiences.
C.
By citing scientific studies.
D.
By referencing historical events.
Show solution
Solution
The author supports their argument by citing scientific studies that demonstrate the adverse effects of climate change on wildlife populations.
Correct Answer:
C
— By citing scientific studies.
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Q. How does the author support their argument about the importance of biodiversity? (2023)
A.
By providing statistical data on species extinction
B.
By sharing personal anecdotes about wildlife
C.
By citing historical examples of biodiversity loss
D.
By discussing economic benefits of biodiversity
Show solution
Solution
The author uses statistical data to illustrate the alarming rates of species extinction, thereby supporting the argument about the importance of biodiversity.
Correct Answer:
A
— By providing statistical data on species extinction
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Q. How does the author support their claims about the effects of climate change?
A.
By providing statistical data and research findings.
B.
By sharing personal experiences.
C.
By citing historical events.
D.
By referencing popular media.
Show solution
Solution
The author supports their claims with statistical data and research findings that illustrate the impacts of climate change.
Correct Answer:
A
— By providing statistical data and research findings.
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Q. How does the author support their claims about the effects of pollution? (2023)
A.
By providing statistical data
B.
By sharing personal anecdotes
C.
By citing expert opinions
D.
By referencing historical events
Show solution
Solution
The author uses statistical data to substantiate their claims regarding the detrimental effects of pollution on health and the environment.
Correct Answer:
A
— By providing statistical data
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Q. How does the author support their claims about the impact of climate change on wildlife?
A.
By providing statistical data.
B.
By sharing personal experiences.
C.
By citing scientific studies.
D.
By referencing historical events.
Show solution
Solution
The author supports their claims by citing scientific studies that demonstrate the adverse effects of climate change on various wildlife species.
Correct Answer:
C
— By citing scientific studies.
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Q. How does the author support their claims about the impact of climate change? (2023)
A.
By providing statistical data.
B.
By sharing personal experiences.
C.
By citing expert opinions.
D.
By using hypothetical scenarios.
Show solution
Solution
The author uses statistical data to substantiate their claims about climate change's impact, making option 0 the correct choice.
Correct Answer:
A
— By providing statistical data.
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Q. How does the author support their claims in the passage?
A.
By providing anecdotal evidence
B.
By citing statistical data
C.
By referencing historical events
D.
By discussing expert opinions
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Solution
The author supports their claims with statistical data that reinforces the validity of the findings discussed.
Correct Answer:
B
— By citing statistical data
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Q. How does the author use language to evoke emotion in the passage about social justice?
A.
By using technical jargon
B.
By employing vivid imagery
C.
By presenting dry facts
D.
By using humor
Show solution
Solution
The author employs vivid imagery to evoke strong emotions regarding social justice issues.
Correct Answer:
B
— By employing vivid imagery
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Q. How does the author view the future implications of the research?
A.
Cautiously optimistic
B.
Highly pessimistic
C.
Indifferent
D.
Uncertain
Show solution
Solution
The author expresses a cautiously optimistic view regarding the future implications of the research.
Correct Answer:
A
— Cautiously optimistic
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Q. How does the author view the impact of social media on environmental activism? (2023)
A.
Social media has no impact on activism.
B.
Social media is detrimental to effective activism.
C.
Social media can amplify voices and mobilize action.
D.
Social media distracts from real-world activism.
Show solution
Solution
The author views social media as a powerful tool for raising awareness and mobilizing support for environmental causes.
Correct Answer:
C
— Social media can amplify voices and mobilize action.
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Q. How does the author view the impact of technology on the process of making selections?
A.
Technology complicates the selection process.
B.
Technology has no effect on selections.
C.
Technology simplifies and enhances the selection process.
D.
Technology should be avoided in making selections.
Show solution
Solution
The author views technology as a factor that simplifies and enhances the selection process, suggesting its positive impact.
Correct Answer:
C
— Technology simplifies and enhances the selection process.
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Q. How does the author view the role of collaboration in scientific research?
A.
It is unnecessary and often counterproductive.
B.
It is essential for innovation and progress.
C.
It complicates the research process.
D.
It should be limited to a few experts.
Show solution
Solution
The author views collaboration as essential for innovation and progress in scientific research.
Correct Answer:
B
— It is essential for innovation and progress.
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Q. How does the author view the role of individual actions in combating climate change? (2023)
A.
Individual actions are insignificant compared to corporate actions.
B.
Individual actions can collectively lead to significant change.
C.
Individual actions should be discouraged to focus on larger policies.
D.
Individual actions are the only solution to climate change.
Show solution
Solution
The author believes that while individual actions may seem small, they can collectively contribute to significant change in addressing climate change.
Correct Answer:
B
— Individual actions can collectively lead to significant change.
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Q. How does the author view the role of individuals in combating climate change?
A.
Individuals have no role.
B.
Individual actions are crucial.
C.
Only governments can make a difference.
D.
Individuals should focus on adaptation.
Show solution
Solution
The author believes that individual actions, when combined with collective efforts, are essential in the fight against climate change.
Correct Answer:
B
— Individual actions are crucial.
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Q. How does the gravitational field strength vary with distance from a point mass?
A.
It increases linearly.
B.
It decreases with the square of the distance.
C.
It remains constant.
D.
It decreases linearly.
Show solution
Solution
The gravitational field strength decreases with the square of the distance from the point mass.
Correct Answer:
B
— It decreases with the square of the distance.
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Q. How does the gravitational force between two objects change if both masses are doubled?
A.
It becomes four times stronger
B.
It becomes twice as strong
C.
It remains the same
D.
It becomes half as strong
Show solution
Solution
Doubling both masses results in a fourfold increase in gravitational force, as it is directly proportional to the product of the masses.
Correct Answer:
A
— It becomes four times stronger
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Q. How does the gravitational force between two objects change if the distance between them is halved?
A.
It doubles
B.
It quadruples
C.
It remains the same
D.
It halves
Show solution
Solution
According to Newton's law of gravitation, if the distance is halved, the force increases by a factor of 4 (F ∝ 1/r²).
Correct Answer:
B
— It quadruples
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Q. How does the gravitational force between two objects change if the mass of one object is tripled?
A.
It triples
B.
It doubles
C.
It remains the same
D.
It increases by a factor of nine
Show solution
Solution
Gravitational force is directly proportional to the product of the masses. Tripling one mass triples the force.
Correct Answer:
A
— It triples
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Q. How does the gravitational force between two objects change if the mass of one object is halved?
A.
It doubles
B.
It halves
C.
It remains the same
D.
It becomes zero
Show solution
Solution
Gravitational force is directly proportional to the product of the masses. Halving one mass halves the force.
Correct Answer:
B
— It halves
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Q. How does the gravitational potential change as you move away from a planet?
A.
It increases.
B.
It decreases.
C.
It remains constant.
D.
It oscillates.
Show solution
Solution
The gravitational potential decreases as you move away from a planet.
Correct Answer:
B
— It decreases.
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Q. How does the gravitational potential energy of a system of two masses change as they move closer together?
A.
It increases.
B.
It decreases.
C.
It remains constant.
D.
It becomes zero.
Show solution
Solution
The gravitational potential energy decreases as the two masses move closer together.
Correct Answer:
B
— It decreases.
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Q. How does the gravitational potential energy of an object change when it is lifted to a height 'h' above the ground?
A.
It decreases.
B.
It increases.
C.
It remains the same.
D.
It becomes zero.
Show solution
Solution
The gravitational potential energy increases as the object is lifted to a height 'h' above the ground.
Correct Answer:
B
— It increases.
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Q. How does the mixed graph challenge conventional wisdom about the two variables? (2023)
A.
It confirms existing theories.
B.
It provides new insights that contradict previous beliefs.
C.
It shows no change in understanding.
D.
It simplifies the relationship.
Show solution
Solution
The graph provides new insights that challenge previously held beliefs about the relationship.
Correct Answer:
B
— It provides new insights that contradict previous beliefs.
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Q. How does the mixed graph illustrate the concept of causation versus correlation? (2023)
A.
It clearly shows that one variable causes the other.
B.
It suggests that correlation does not imply causation.
C.
It provides evidence for a causal relationship.
D.
It does not address causation at all.
Show solution
Solution
The graph indicates a correlation but does not provide evidence for causation.
Correct Answer:
B
— It suggests that correlation does not imply causation.
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Q. How does the presence of a +M group affect the stability of a carbocation?
A.
Increases stability
B.
Decreases stability
C.
No effect
D.
Depends on the solvent
Show solution
Solution
A +M group increases the stability of a carbocation by donating electron density through resonance.
Correct Answer:
A
— Increases stability
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Q. How does the presence of a -I group affect the stability of a carbocation?
A.
Increases stability
B.
Decreases stability
C.
No effect
D.
Depends on the size of the group
Show solution
Solution
A -I group decreases the stability of a carbocation by withdrawing electron density.
Correct Answer:
B
— Decreases stability
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Q. How does the presence of constraints affect the potential energy of a system? (2022)
A.
It increases potential energy
B.
It decreases potential energy
C.
It has no effect
D.
It converts potential energy to kinetic energy
Show solution
Solution
Constraints can limit the configurations of a system, often leading to a decrease in potential energy.
Correct Answer:
B
— It decreases potential energy
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Q. How important is the conclusion in an essay for the UPSC Mains examination?
A.
It is the least important part.
B.
It summarizes the main points only.
C.
It should introduce new ideas.
D.
It reinforces the thesis and leaves a lasting impression.
Show solution
Solution
The conclusion is crucial as it reinforces the main arguments and provides a final perspective, leaving a lasting impression on the examiner.
Correct Answer:
D
— It reinforces the thesis and leaves a lasting impression.
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Q. How many atoms are in 2 moles of oxygen gas (O2)?
A.
6.022 x 10^23
B.
1.2044 x 10^24
C.
3.011 x 10^23
D.
12.044 x 10^23
Show solution
Solution
Each O2 molecule has 2 oxygen atoms. Number of atoms = moles x Avogadro's number x 2 = 2 moles x 6.022 x 10^23 molecules/mole x 2 = 1.2044 x 10^24 atoms.
Correct Answer:
B
— 1.2044 x 10^24
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Q. How many bones are there in an adult human body?
A.
206
B.
201
C.
210
D.
215
Show solution
Solution
An adult human body typically has 206 bones.
Correct Answer:
A
— 206
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