Every Day Science

Everyday Science MCQs Questions with Answers for CSS MPT Test by FPSC including solved CSS General Science and Ability Past Papers MCQs. General Everyday

A submarine works according to which scientific law?

A. Newton’s First Law
B. Archimedes’ Principle
C. Pascal’s Law
D. Boyle’s Law
Correct answer is: B. Archimedes’ Principle
Submarines float and submerge based on the principle of buoyancy described by Archimedes.

The model where the Sun was believed to revolve around the Earth was first proposed by which scientist?

A. Nicolaus Copernicus
B. Ptolemy
C. Galileo Galilei
D. Johannes Kepler
Correct answer is: B. Ptolemy
Ptolemy proposed the geocentric model where the Earth was at the center and the Sun revolved around it.

Ice floats on water because:

A. Ice is denser than water
B. Water is denser than ice
C. It is more viscous than water
D. Ice has more surface tension than water
Correct answer is: B. Water is denser than ice
Ice floats because ice is less dense than liquid water — water is denser than ice.

Taste buds are for:

A. Digestion
B. Selection/ Taste perception
C. Respiration
D. Safety
Correct answer is: B. Selection/ Taste perception
Taste buds detect flavors (sweet, salty, sour, bitter, umami) — they help in selecting food (and detecting spoilage/toxins).

Soil erosion is caused by:

A. Deforestation
B. Residual
C. Mining
D. Leaching
Correct answer is: A. Deforestation
Removal of vegetation cover (deforestation) increases runoff and accelerates soil erosion.

Which is the nearest major galaxy to Earth (outside the Milky Way)?

A. Milky Way
B. Andromeda Galaxy
C. Triangulum Galaxy
D. Sombrero Galaxy
Correct answer is: B. Andromeda Galaxy
The Andromeda Galaxy (M31) is the nearest large spiral galaxy to the Milky Way (~2.5 million ly).

Which of the following is an example of a mineral acid?

A. Acetic acid
B. Citric acid
C. Sulfuric acid
D. Tartaric acid
Correct answer is: C. Sulfuric acid
Sulfuric acid (H₂SO₄) is a strong mineral (inorganic) acid; the others are organic acids.

How many vertebrae are there in the adult human body (counting fused bones as in adult anatomy)?

A. 33
B. 24
C. 22
D. 20
Correct answer is: A. 33
There are 33 vertebrae in the adult human body, though these are grouped into 5 regions and include 5 fused sacral and 4 fused coccygeal vertebrae. The total counts include 7 cervical (neck), 12 thoracic (chest), 5 lumbar (lower back), 5 sacral (fused), and 4 coccygeal (fused).
Breakdown of Vertebrae
Cervical Vertebrae: 7
Thoracic Vertebrae: 12
Lumbar Vertebrae: 5
Sacral Vertebrae: 5 (fused)
Coccygeal Vertebrae: 4 (fused, forming the coccyx or tailbone)
Total: 7 + 12 + 5 + 5 + 4 = 33

Mushrooms belong to which kingdom?

A. Fungi
B. Plantae
C. Animalia
D. Protista
Correct answer is: A. Fungi
Kingdom of MushroomsMushrooms are fungi, not plants. They obtain nutrients through decomposition.

Who formulated the law of gravity?

A. Albert Einstein
B. Galileo Galilei
C. Isaac Newton
D. Nikola Tesla
Correct answer is: C. Isaac Newton
Law of GravitySir Isaac Newton formulated the law of universal gravitation in the 17th century.
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