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All seven General Studies Paper I (Prelims) subjects: History, Polity, Geography, Economics, Science & Technology, Environment, and Current Affairs. Cards are organized by topic and weighted to match exam patterns.

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UPSC CSE Prelims Discriminating Confusable Entities — Science & Technology Flashcards

Master 55 discriminating confusable entities — science & technology concepts for the UPSC CSE Prelims.

Discriminating Confusable Entities — Biology

15 cards

Question

With reference to nucleic acids in human cells, consider the following statements:

DNA primarily acts as a temporary copy for protein synthesis.
RNA stores genetic information permanently.

Which of the statements given above is/are correct?

Question

Identify the correct sugar molecules found in nucleic acid backbones.

DNA contains sugar, which has one fewer hydroxyl (-OH) group compared to the sugar found in RNA.

Discriminating Confusable Entities — Physics & Chemistry

12 cards

Question

Consider the following statements regarding electric current:

Alternating Current (AC) reverses its direction periodically.
The regular household electricity supply is primarily Direct Current (DC).

Which of the statements given above is/are correct?

Question

Complete the statement regarding power transmission.

For long-distance power transmission, is preferred over the other because its voltage can be efficiently stepped up or down using .

Discriminating Confusable Entities — Environment & Energy

8 cards

Question

Complete the comparison regarding waste breakdown timeframes:

Biodegradable waste is broken down by over a period of weeks to months, whereas non-biodegradable waste can persist in the environment for .

Question

Consider the following statements regarding waste degradation:

The decomposition of biodegradable waste primarily depletes soil nutrients.
Non-biodegradable waste is a major contributor to ocean microplastic pollution.

Which of the statements given above is/are correct?

Discriminating Confusable Entities — Space & Satellites

5 cards

Question

Discriminate between the primary Indian satellite series based on their functional orbits:

The series operates in orbits for weather and communication, whereas the series operates in orbits for Earth observation.

Question

Consider the following statements:

INSAT satellites are positioned in polar sun-synchronous Low Earth Orbit (LEO) at altitudes of ~600-900 km.
IRS satellites are placed in Geostationary Earth Orbit (GEO) at an altitude of ~35,786 km.

Which of the statements given above is/are correct?

Also study

Biology & Human Health119 Space Technology48 Physics — Principles & Applications59 Chemistry — Concepts & Applications58 Defence Technology & DRDO12 IT, Communications & Emerging Technology36 Scientific Instruments & Everyday Science12 Energy Technology & Renewable Energy13

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