Assistant in S&GAD PPSC Past Papers 2022
Assistant S&GAD Past Paper 2022. PPSC Exam Assistant Past Papers of are available here. Here Pakistani students can get Punjab Public Service Commission Exams S & GDA Department Past Papers.
A.
Astrology
B.
Astronomy
C.
Cosmography
D.
None of these
Correct answer is:
B. Astronomy
Explanation:
The correct answer is Astronomy because it is the formal branch of science dedicated to the study of stars, planets, and celestial objects throughout the universe.
- Step 1 (Scientific Method): Astronomy utilizes physics, chemistry, and mathematics to study the evolution, composition, motion, and structural lifecycles of stars and celestial systems.
- Incorrect Options:
- Astrology is incorrect because it is a non-scientific system of belief that attempts to predict human behavior and earthly events based on the relative positions of celestial bodies.
- Cosmography is incorrect because it focuses primarily on mapping the general features of the universe and the visible heavens, rather than analyzing the specific physical properties of stars.
- None of these is incorrect because astronomy is the exact academic term for this science.
Assistant in S&GAD PPSC Past Papers 2022 Every Day Science Punjab Public Servie Comission Assistant S&GAD Past Papers
A.
Appendix
B.
Coccyx
C.
Eyelid
D.
None of these
Correct answer is:
C. Eyelid
Explanation:
The correct answer is Eyelid because the human eyelid is a fully operational, essential structural organ that protects the eye from debris and keeps the cornea lubricated.
- Step 1 (Vestigial Organs): Vestigial structures are anatomical remnants that have lost all or most of their original ancestral function through evolution. Classic human examples include the vermiform appendix and the coccyx (tailbone).
- Step 2 (The Role of Eyelids): Unlike vestigial remnants, the eyelids serve a critical, daily survival function. They blink to spread tears evenly across the eye surface and snap shut reflexively to shield the eye from physical trauma or blinding light.
- Incorrect Options:
- Appendix is incorrect because it is widely classified as a classic vestigial organ, as humans can undergo a surgical removal of it without suffering critical digestive impairments.
- Coccyx is incorrect because the tailbone is a evolutionary vestige of a mammalian tail, though it still provides anchoring points for specific pelvic floor muscles.
- None of these is incorrect because the eyelid is the precise non-vestigial organ.
Assistant in S&GAD PPSC Past Papers 2022 Every Day Science Punjab Public Servie Comission Assistant S&GAD Past Papers
