Everyday Science — All MCQs

Correct Answer: B

The smallest unit of heredity is Gene. This value follows from the standard definition or accepted conversion used for the quantity.

Correct Answer: B

The symbol of Gold is Au. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: C

The temperature at the center of the Sun is 15 million °C. Astronomical observations and measurements establish this relationship among the relevant celestial bodies.

Correct Answer: D

What is the third most common gas found in the air we breathe Argon. Its composition and chemical or physical behavior give it the stated classification or property.

Correct Answer: D

The warmest Ocean is Indian Ocean. Its geographic position or physical characteristics account for the description given.

Correct Answer: B

The wavelength of visible spectrum: is 3900-7600A. The result follows from how light is reflected, refracted, focused, or distributed across the electromagnetic spectrum.

Correct Answer: A

The weight of the average human brain is 1.2 to 1.4 Kg. This follows from the structure and normal physiological function of the relevant organ, tissue, or body system.

Correct Answer: A

The Red Sea is commonly identified as the world’s warmest sea. Its hot climate, high evaporation, and restricted exchange with the open ocean keep its waters unusually warm.

Correct Answer: A

Total area of the earth is 510.94 million km². Astronomical observations and measurements establish this relationship among the relevant celestial bodies.

Correct Answer: C

Unit of conductivity is mho. This value follows from the standard definition or accepted conversion used for the quantity.

Correct Answer: D

Unit of Pressure is All of these. The stated result follows from the relevant physical relationship between force, matter, motion, or energy.

Correct Answer: C

Used in making of alloys is Chromium. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: D

What is/are the basic purpose(s) of dams: All of the above. Each listed statement describes a valid part of the same concept, so they apply together.

Correct Answer: A

What kind of soil is treated with gypsum to make it suitable for cropping Alkaline. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: D

What kind of weathering takes place on the valley side above the surface of the glacier: Frost shattering. Its geographic position or physical characteristics account for the description given.

Correct Answer: B

What makes a lemon sour: Citric Acid. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: C

What makes dark matter invisible to telescope: Dark matter does not interact with electromagnetic force. The result follows from how light is reflected, refracted, focused, or distributed across the electromagnetic spectrum.

Correct Answer: B

What measurement scale is used to determine wind speed: Beaufort Scale. The stated result follows from the relevant physical relationship between force, matter, motion, or energy.

Correct Answer: C

What melted rock eventually becomes lava: Magma. Its composition and chemical or physical behavior give it the stated classification or property.

Correct Answer: A

What method of energy transfer requires no medium for transfer: Radiation. The stated result follows from the relevant physical relationship between force, matter, motion, or energy.