CSS · Federal Public Service Commission · 2026
Solved CSS MPT Everyday Science practice set from the 1000 Advanced Booklet, Q851–900 — 19 new MCQs with verified answers and explanations (cosmology, rust, histology, chemical symbols, the human body, SI units, geology). A practice compilation, not a past paper.
Paper Snapshot
Questions
19
Time
19
Minutes
Subjects
1
Topics
6
Read mode shows correct answers. Attempt mode hides answers, starts timer, and shows your result after submission.
About this paper
Part 18 (Q851–900) of the Sir Adnan '1000 Advanced Booklet Everyday Science' one-liner compilation (monster-data 'CSS MPT PAST PAPERS' pack). The booklet prints statement + answer only, so each item is published in the standard MCQ format with 3 authored plausible distractors under Anas's 2026-10-28 single-format decision and optionsSource recorded as 'authored'. Only 19 of 50 printed items are published. 31 restate facts already published in earlier parts of the same booklet (or the 2025 EDS section / 2026 mock) and are cross-linked, not re-extracted: Q852 main source of vitamin D, sunlight (2026 mock + Q614 in Q601-650, vitamin produced in the skin by sunlight); Q853 SI unit of electric current, ampere (Q607 in Q601-650 + MPT EDS one-liners Q7); Q854 fastest animal in water, sailfish (Q793 in Q751-800, fastest aquatic animal); Q857 SI unit of pressure, pascal (Q674 in Q651-700 + Q804 in Q801-850); Q859 gas used in lighted advertising signs, neon (Q794 in Q751-800, gas used in fluorescent signs); Q860 vitamin deficiency causing anemia, vitamin B12 (Q228 in Q201-250, deficiency of vitamin B12 causes pernicious anemia); Q863 study of fossils, paleontology (Q21 in Q1-50 + Q302 in Q301-350); Q864 SI unit of power, watt (Q716 in Q701-750); Q865 organ producing insulin, pancreas (Q248 in Q201-250); Q868 gas essential for photosynthesis, carbon dioxide (2026 mock + MPT EDS one-liners Q6); Q871 organ purifying blood, kidneys (Q288 in Q251-300 + 2025 EDS section Q42); Q872 vitamin helping blood clotting, vitamin K (Q225 in Q201-250); Q873 SI unit of light intensity, candela (Q726 in Q701-750, SI unit of luminous intensity); Q875 chemical symbol of gold, Au (Q688 in Q651-700); Q877 gas used in fire extinguishers, carbon dioxide (Q2 in Q1-50 + 2025 EDS section Q43); Q878 hardest part of the human body, tooth enamel (Q270 in Q251-300); Q880 SI unit of heat, joule (Q343 in Q301-350, unit of energy + Q709 in Q701-750, SI unit of work); Q881 fastest rotating planet, Jupiter (Q618 in Q601-650); Q882 normal pH of human blood, 7.4 (Q215 in Q201-250 + MPT EDS one-liners Q17); Q883 metal used in bulb filaments, tungsten (2025 EDS section Q24); Q884 study of insects, entomology (Q684 in Q651-700); Q885 SI unit of temperature, kelvin (Q775 in Q751-800); Q886 largest internal organ, liver (Q202 in Q201-250 + Q686 in Q651-700); Q887 smallest planet, Mercury (Q715 in Q701-750); Q888 SI unit of force, newton (Q642 in Q601-650); Q891 organ storing bile, gallbladder (Q285 in Q251-300); Q892 water changing into vapor, evaporation (2025 EDS section Q39); Q893 SI unit of electric capacitance, farad (Q800 in Q751-800); Q895 largest gland, liver (Q245 in Q201-250); Q898 smallest bird, hummingbird (Q784 in Q751-800); Q899 most abundant gas in the atmosphere, nitrogen (2025 EDS section Q14 + MPT EDS one-liners Q9). No printed item in this stretch is dropped as unanswerable.
Paper Controls
Subject 1
Topic Section
2 solved MCQs shown directly below
Correct Answer: Cosmology
The study of the universe is called cosmology: it deals with the origin, evolution and large-scale structure of the whole universe, while astronomy studies individual celestial bodies and astrology is not a science.
Correct Answer: Venus
Venus is the hottest planet in the solar system: its thick carbon-dioxide atmosphere traps heat in a runaway greenhouse effect, giving a surface temperature of about 465°C, hotter than Mercury even though Mercury is closer to the Sun.
Topic Section
6 solved MCQs shown directly below
Correct Answer: Hydrated Iron Oxide
The chemical name of rust is hydrated iron oxide: when iron corrodes in moist air it forms reddish-brown hydrated ferric oxide, roughly Fe2O3.xH2O, which flakes off and exposes fresh metal underneath.
Correct Answer: Pb
The chemical symbol of lead is Pb: from its Latin name plumbum (Pd is palladium, and Ld/Le are not element symbols).
Correct Answer: H₂O₂
The chemical formula of hydrogen peroxide is H2O2: it has one extra oxygen atom compared with water (H2O), which makes it a strong oxidiser used as a disinfectant and bleach.
Correct Answer: Hg
The chemical symbol of mercury is Hg: from its Latin name hydrargyrum, meaning liquid silver, which fits the only metal that is liquid at room temperature.
Correct Answer: Cu
The chemical symbol of copper is Cu: from its Latin name cuprum (Co is cobalt, Cr chromium).
Correct Answer: C₆H₁₂O₆
The chemical formula of glucose is C6H12O6: the simple sugar plants make in photosynthesis and the body's main fuel, broken down in respiration to release energy.
Topic Section
5 solved MCQs shown directly below
Correct Answer: Histology
The study of tissues is called histology: it examines the microscopic structure of the tissues that make up organs, while cytology studies individual cells and anatomy studies the body's structure.
Correct Answer: Botany
The study of plants is called botany: the branch of biology that covers plant structure, growth, classification and distribution (zoology covers animals, ecology covers organisms and their surroundings).
Correct Answer: Fermentation
The process of making curd from milk is fermentation: lactic-acid bacteria ferment the milk sugar lactose into lactic acid, which thickens the milk and gives curd its sour taste.
Correct Answer: Photosynthesis
The process by which plants make oxygen is photosynthesis: in sunlight, plants split water molecules and release oxygen as a by-product while fixing carbon dioxide into food.
Correct Answer: Oncology
The study of cancer is called oncology: the branch of medicine that deals with the prevention, diagnosis and treatment of cancers (cardiology covers the heart, neurology the nervous system).
Topic Section
1 solved MCQs shown directly below
Correct Answer: Stomach
The stomach secretes hydrochloric acid: parietal cells in its gastric glands release HCl, which gives gastric juice its acidity, activates pepsin for protein digestion and kills most swallowed microbes.
Topic Section
3 solved MCQs shown directly below
Correct Answer: Decibel
The SI unit of sound intensity is the decibel: sound intensity level is measured in decibels on a logarithmic scale, so a 10 dB rise means ten times the intensity (the hertz is frequency, the watt power, the pascal pressure).
Correct Answer: Meter
The SI unit of length is the meter: it is the base unit from which kilometres, centimetres and millimetres are derived (the litre is volume, the gram mass, the second time).
Correct Answer: Acoustics
The study of sound is called acoustics: it covers how sound is produced, transmitted and heard, from musical instruments to ultrasound (optics covers light, mechanics covers motion and forces).
Topic Section
2 solved MCQs shown directly below
Correct Answer: Geology
The study of the earth's physical features is geology in the booklet's standard one-liner usage: geology studies the earth, its rocks, structure and the processes that shape its surface.
Correct Answer: Psychology
The study of the human mind and behavior is called psychology: it covers mental processes such as perception, learning and emotion, and how they shape behaviour (sociology covers societies, anthropology covers human cultures).
Source & verification
Built by GK360 from verified bank questions — every answer rechecked before publishing. Where the source printed no options, the answer options were prepared by GK360; the questions and correct answers are the verified originals.
Questions
No. This is a practice set built from the Sir Adnan '1000 Advanced Booklet Everyday Science' one-liner compilation. It is labelled practice in the title, slug and paperType and must not be quoted as an official past paper.
This stretch of the booklet largely restates its own earlier parts: 31 of the 50 items repeat facts already published in Q1–850 of the same booklet, the 2025 EDS section or the 2026 mock (sunlight and vitamin D, the ampere, the sailfish, the pascal, neon signs, vitamin B12 and anemia, paleontology, the watt, insulin from the pancreas, carbon dioxide in photosynthesis and fire extinguishers, the kidneys, vitamin K, the candela, gold's symbol Au, tooth enamel, the joule, Jupiter's rotation, blood pH 7.4, tungsten filaments, entomology, the kelvin, the liver, Mercury as the smallest planet, the newton, the gallbladder, evaporation, the farad, and the hummingbird and nitrogen facts). Those facts are cross-linked to their earlier publication, not re-extracted.
The booklet prints a statement and its answer only, with no options. Each item is published in the standard 4-option MCQ format with 3 authored plausible distractors, under the 2026-10-28 single-format decision; the answers themselves are the booklet's verified standard answers.
Cosmology as the study of the universe, rust as hydrated iron oxide, histology, the symbols Pb, Hg and Cu, hydrochloric acid from the stomach, hydrogen peroxide H2O2, the decibel, Venus as the hottest planet, botany, fermentation in curd-making, photosynthesis as the process that makes oxygen, oncology, geology, psychology, glucose C6H12O6, the meter as the SI unit of length, and acoustics.
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