PPSC PAST PAPERS MCQS 2004 TO 2020 OF EVERYDAY SCIENCE
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چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
حیاتیات _____ کا مطالعہ ہے؟
All living things
Plants
Animals
None of these
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Explanation
Biology is the scientific study of all living organisms.
It including their structure, function, growth, and interactions.
خون اور اس کے امراض کا مطالعہ کرنے والی طب کی ایک شاخ کو کیا کہا جاتا ہے؟
Dermatology
Haematology
Pathology
None of these
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Explanation
Agrostology : Study of Grasses
Agronomy : Soil management and crop production
Odontology : Study of teeth
Arthrology : Study of joints
Nephrology : Study of kidneys
Hematology : Study of blood
Are responsible for phototropism and gravitropism
Are gases at room temperature
Are produced only by fungi
Cause boiling some biennial germ
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Explanation
Gibberellins are known to promote bolting (the rapid elongation of stems) in s ome biennial plant s, especially when they transition from a vegetative to a reproductive state.
بگ بینگ تھیوری کے مطابق کائنات _____ ہے؟
Stationary
Expanding
Contracting
None of these
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Explanation
According to the Big Bang theory , the universe is expanding .
The universe is currently 13.8 billion years old.
According to Big Bang Theory, the Universe began about 10-20 billion years ago.
Big Bang theory explains Origin of Universe.
At the time of the big bang, Time was zero .
ایڈز کا وائرس جسم کا کون سا نظام تباہ کرتا ہے؟
Digestion
Brain
Immune
None of these
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Explanation
AIDS stands for Acquired Immunodeficiency Syndrome .
It is caused by the HIV virus .
The virus primarily attacks the immune system.
This weakens the body's defense against infections and diseases.
سب سے زیادہ استعمال ہونے والا بلیچنگ ایجنٹ ______ ہے؟
Chlorine
Alcohol
Sodium Chloride
None of these
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Explanation
Bleaching powder : Calcium oxychloride (CaOCl₂) Chlorine : Atomic number 17, mass number 35.45, yellow-green gas Halogen : Second lightest element, P-block Properties : Oxidizing agent Deacon's process : Chlorine production Extraction : From seawater Discovery : Carl Wilhelm Scheele Uses : Water purification, swimming pool sanitation, antiseptic Anaesthetic : Chloroform (CHCl₃) Plastics : PVC (Poly Vinyl Chloride)
مندرجہ ذیل میں سے کون سا ایک مثبت چارج شدہ ذرہ ہے جو تابکار عنصر سے خارج ہوتا ہے؟
Gamma rays
Beta rays
Alpha rays
None of these
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Explanation
Alpha rays are positively charged particles made of two protons and two neutrons. They are produced during the decay of heavy, unstable atomic nuclei. They travel in a narrow, straight path when emitted.
دوسری ضروری دھات زمین کی پرت میں پائی جاتی ہے؟
Iron
Aluminum
Calcium
Sodium
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Explanation
Iron is the second most abundant metal in the Earth's crust, after aluminum.
Iron is also the fourth most common element in the Earth's crust.
In its pure form, iron is a heavy, silvery, magnetic metal.
Silicon is the second most abundant element in the Earth's crust, after oxygen
درج ذیل الفاظ میں سے طاق لفظ تلاش کریں؟
Diameter
Barometer
Thermometer
Lactometer
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Explanation
The odd one out is ' Diameter ' because it is a geometric concept.
While the other options ( Lactometer, Barometer, Thermometer ) are instruments used to measure specific physical properties.
نیوکلیئر فزکس کا باپ کس کو کہا جاتا ہے؟
Ernest Rutherford
Nikola Tesla
James Maxwell
None of these
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Explanation
Ernest Rutherford , a British physicist probed atoms with alpha particles.
He was known as the “ father of nuclear physics ”.
He was awarded the Nobel prize for his contribution to the structure of the atom in 1908.