PPSC ESE SCIENCE PAST PAPER 15-02-2026
پیپر میں جانے سے
پہلے یہ سوالات و سلیبس ایک بار ضرور پڑھ کر جائیں
PPSC 25
years Past Papers Click here
چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
ڈبل فرٹلائجیشن ______ میں ہوتی ہے؟
- Bryophytes
- Brassica
- Pineal Body
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Double fertilization occurs in angiosperms like Brassica
Where one sperm fertilizes the egg, and another fuses with the central cell to form endosperm.
Bryophytes and gymnosperms (e.g., pine).
Last updated 17-02-2026
- Xerosere
- Hydrosere
- Derosere
- Sammoser
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Xerosere is a type of succession that occurs in dry or desert areas, starting from bare land
It involves a gradual, staged transition from bare, xeric conditions to a stable, mature, and moisture-retaining climax forest community
کس کی بڑھتی ہوئی حراستی گلوبل وارمنگ کا سبب بنتی ہے؟
- CH4
- O3
- CO2
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
CO2 (Carbon Dioxide) is a major greenhouse gas that traps heat in the Earth's atmosphere.It contributing significantly to global warming.Increased levels of CO2, primarily from human activities like burning fossil fuels.They are a leading cause of climate change.
ایک قابلِ اعتماد امتحان وہ ہوتا ہے جو کیا کرتا ہے؟
- Yields consistent results across administrations
- Is challenging
- Covers many topics
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
A reliable test is one that consistently yields similar results upon repeated administrations.
Consistency: The primary hallmark of reliability is consistency.
Stability: A reliable test is stable over time and under similar conditions.
Reliability vs. Validity: While a reliable test gives consistent results, a valid test accurately measures what it is intended to measure.
- Science of behavior
- Science of learning
- Science of teaching
- Science of testing
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Pedagogy is a method, theory, and practice of teaching.
Methodology: The specific techniques and approaches used to instruct learners.
Study of Teaching: It examines the most effective ways to facilitate learning.
Last updated 17-02-2026
مندرجہ ذیل میں سے کون سی گیس سب سے تیزی سے پھیلتی ہے؟
- Hydrogen
- Chlorine
- Fluorine
- Helium
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Hydrogen is typically the gas that diffuses the fastest because it has the lowest molar mass.
Molecular weight of 2.016 g/mol.
According to Graham's Law of Diffusion, the rate of diffusion of a gas is inversely proportional to the square root of its molecular weight.
Therefore, hydrogen diffuses the fastest.
فتوسنتھیسس کے دوران پیدا ہونے والا بنیادی مالیکیول ______ ہے؟
- Glucose
- Amino acid
- Fatty acid
- Nucleotide
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
The fundamental molecule produced during photosynthesis is glucose
Key Product: Glucose (sugar/carbohydrate) is the main energy-storing molecule.
Purpose: It is used for plant respiration and as a building block for cellulose.
By-product: Oxygen is also produced and released into the atmosphere
فوڈ چین میں لیولز کی صحیح ترتیب کیا ہے؟
- Producer → Consumer → Decomposer
- Consumer → Producer → Decomposer
- Decomposer → Producer → Consumer
- Consumer → Decomposer → Producer
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
The correct order of the levels in a food chain is:
- Producer (plants and algae that produce their own food through photosynthesis)
- Consumer (animals that eat producers or other consumers)
- Decomposer (organisms like bacteria and fungi that break down dead plants and animals)
Last updated 17-02-2026
کلاس روم مینجمنٹ کا بنیادی مقصد کیا ہے؟
- To discipline students and maintain control
- To create a supportive learning environment and promote student engagement
- To deliver instruction and cover curriculum content
- To evaluate student learning and assess academic achievement
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
The primary goal of classroom management is to create a safe, orderly, and supportive learning environment
That maximizes student engagement, minimizes disruptions, and fosters academic, social, and emotional growth
علی کی دماغی عمر 12 سال ہے، جب کہ اس کی تاریخی عمر 10 ہے۔ ان کی ذہانت کا اقتباس IQ کیا ہوگا؟
- 100
- 110
- 120
- 130
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
To calculate Ali's intelligence quotient (IQ), we use the formula:
IQ = (Mental Age / Chronological Age) * 100
Given that Ali's mental age is 12 and his chronological age is 10:
IQ = (12 / 10) * 100
= 1.2 * 100
= 120
