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۔
Pectoral & pelvic fins
Caudal fins
Dorsal fin
All of these
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Explanation
The pectoral and pelvic fins are the paired fins in fishes.
Paired fins:
Fish have two sets of paired fins: pectoral and pelvic.
Pectoral fins:
These are located on the sides of the fish, and they are used for steering and maneuvering.
Pelvic fins:
These are located on the ventral (belly) side of the fish, and they help with balance and stability.
Unpaired fins:
The dorsal, anal and caudal fins are unpaired and situated along the midline of the body.
Mucous
Base
Acid
Water
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Explanation
Goblet cells are specialized cells that produce and secrete mucus, a key component of the protective mucus layer lining the respiratory and gastrointestinal tracts.
Point Count Method
Camera Trapping
Line Transect Method
Mist Netting
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Explanation
The Line Transect Method is a survey technique where an observer follows a fixed pathway (transect) and records bird sightings along the way.
This method is useful for estimating bird populations, species distribution, and habitat preferences.
ٹریکنگ کا طریقہ جس میں فضائی ٹریکنگ اور زمینی سچائی شامل ہے؟
Direct observation
Camera tap
Multi-method observation
None of these
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Explanation
MOT is widely used in autonomous vehicles, surveillance, sports analytics, and biological studies (e.g., tracking animal movement).
Key Aspects of MOT:
Detection – Identifying multiple objects in each frame.
Association – Matching detected objects across frames to maintain consistent tracking.
Prediction – Estimating object positions in future frames (e.g., using Kalman filters).
Data Fusion – Combining information from multiple sources ( e.g., LiDAR, cameras) for more accurate tracking.
41
42
44
45
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Explanation
The Convention on Biological Diversity (CBD) contains 42 articles along with 3 annexes.
Ineffective in large areas
Time Consuming & May Disturb Nesting Birds
Require high cost
Less Accurate Data
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Explanation
Ineffective in Large Areas – Difficult to cover extensive regions accurately.
Koh Hindukush
Himalayas
Koh Karakorum
None of these
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Explanation
It hibernates throughout the winter in the northwestern Himalayas
Currently, it only exists in Asia, mainly confined in the Himalayas of India, Bhutan, Nepal, China, and Pakistan.
The Himalayan black bear is typically nocturnal and elusive,
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Carnivora
Family: Ursidae
Genus: Ursus
Species: U. thibetanus
Subspecies: U. t. laniger
Trinomial name
Ursus thibetanus laniger
SAS (Statistical Analysis System)
QGIS (Quantum Geographic Information System)
SPSS (Statistical Package for the Social Sciences)
None of these
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Explanation
QGIS (Quantum GIS) is widely used in wildlife surveys for mapping habitats, tracking animal movements, analyzing spatial data, and planning conservation strategies.
It allows researchers to visualize and interpret ecological data efficiently.
Deforestation
Overfishing
Climate change
All of these
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Explanation
The destruction of wildlife is a multifaceted problem, and the answer is All of these, as deforestation, overfishing, and climate change are all significant drivers of wildlife decline.
Arboreal
Fossorial
Nocturnal
None of these
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Explanation
Fossorial means digging or burrowing animals.
An animal adapted to living underground, often by digging a burrow and/or tunnels.
Some examples of fossorial animals are earthworms, ants, moles, voles, and shrews .