PPSC PAST PAPERS ALL MCQS 2025 OF EVERYDAY SCIENCE
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چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
- Sponges
- Cnidaria
- Flatworm
- Nematodes
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Explanation
Mesohyl is a gelatinous, protein-rich layer found in sponges, acting as a connective tissue between their inner and outer layers.
اوہیپس ____ کا آباؤ اجداد سمجھا جاتا ہے؟
- Elephant
- Camel
- Horse
- None of these
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Explanation
Eohippus, also known as Hyracotherium.It is an early ancestor of the modern horse.It lived around 50-60 million years ago.It had four toes on its front feet and three on its back feet.
انسانی جسم کا کون سا حصہ "ہیپاٹائٹس وائرس" سے زیادہ نقصان کا شکار ہوتا ہے؟
- Liver
- Spleen
- Lungs
- Kidneys
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Explanation
The part of the human body more prone to damage from the Hepatitis Virus is the Liver.
Hepatitis is an inflammation of the liver, caused by various hepatitis viruses (A, B, C, etc.).
It can lead to liver damage, cirrhosis, or liver cancer.
مختصرا. _____ انسانی طرز عمل اور انسانی تعلقات کا مطالعہ ہے۔
- Research
- Psychology
- Physical activity
- None of these
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Explanation
Psychology is the scientific study of human behavior, emotions, and cognitive processes.It also examines human relationships and social interactions to understand mental and emotional well-being.
کوئلے کی گیس بنیادی طور پر ______ پر مشتمل ہے؟
- Hydrogen and oxygen
- Methane and hydrogen
- Ethane and hydrogen
- None of these
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Explanation
Coal gas primarily consists of methane (CH₄) and hydrogen (H₂), along with small amounts of other gases.It is produced during the destructive distillation of coal, where methane and hydrogen are key components.
خون کی بیماری کی ایک قسم جو تابکاری کی وجہ سے ہوتی ہے جیسے ایکس رے اور گاما کرنوں کی وجہ سے ہے؟
- Malaria
- Leukemia
- Hepatitis
- None of these
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Explanation
Leukemia is a blood cancer caused by mutations in blood-forming cells.It often triggered by radiation exposure.X-rays and gamma rays can damage DNA in bone marrow.This leading to uncontrolled white blood cell production.
موبائل فون پیغامات بھیجنے اور وصول کرنے کے لیے کس چیز کے ذریعے کام کرتا ہے؟
- Sound waves
- Microwaves
- U/V waves
- Radio waves
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Explanation
Mobile phones communicate using radio waves.
These waves are a type of electromagnetic radiation.
Signals are sent to and received from cell towers (base stations).
بیکٹیریا اور فنگس کا تعلق حیاتیاتی اجزاء کے گروپ سے ہے جسے _____ کہا جاتا ہے؟
- Producers
- Consumers
- Predators
- Decomposers
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Explanation
- Bacteria and fungi are examples of decomposers.
- Which are organisms that break down dead organic matter into simpler compounds, releasing nutrients back into the ecosystem.
- This process is essential for nutrient cycling and the health of ecosystems.
تھرموس فلاسک ____ کو کم کرکے چیزوں کو ان کے اصل درجہ حرارت کے قریب رکھتا ہے؟
- Conduction
- Convection
- Radiation
- All of these
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Explanation
A thermos flask is designed to reduce heat transfer through all three methods:
- Conduction: The flask has a vacuum insulation, which eliminates conduction through the container.
- Convection: The flask's design and vacuum insulation prevent convective heat transfer.
- Radiation: The flask's reflective coating minimizes radiant heat transfer.
پلیٹ ٹیکٹونک تھیوری کب پیش کی گئی؟
- 1966
- 1876
- 1900
- 1960
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Explanation
The Plate Tectonic Theory was developed in the 1960s.
It was formally presented around 1967.
The theory explains the movement of Earth’s lithospheric plates.
It helped explain earthquakes, volcanoes, and the formation of mountains.
Plate tectonics unified earlier ideas like continental drift and seafloor spreading.
