Everyday Science — All MCQs

Correct Answer: B

The lens used in a simple microscope is Convex. The result follows from how light is reflected, refracted, focused, or distributed across the electromagnetic spectrum.

Correct Answer: C

The lenses are used for the correction of: Both A & B. The result follows from how light is reflected, refracted, focused, or distributed across the electromagnetic spectrum.

Correct Answer: B

The lifespan of Red Blood Cells is 120 days. This follows from the structure and normal physiological function of the relevant organ, tissue, or body system.

Correct Answer: D

The lifespan of White Blood Cells is 5 – 21 days day(s). This follows from the structure and normal physiological function of the relevant organ, tissue, or body system.

Correct Answer: C

The light of distant stars is affected by both an and B. Astronomical observations and measurements establish this relationship among the relevant celestial bodies.

Correct Answer: D

The light rays used for eliminating bacteria: ultra-violet radiation. The result follows from how light is reflected, refracted, focused, or distributed across the electromagnetic spectrum.

Correct Answer: C

The longest bone in human body is Femur. This follows from the structure and normal physiological function of the relevant organ, tissue, or body system.

Correct Answer: B

The lowest region of the earth’s atmosphere comes between the earth and stratosphere. what is this region’s name: Troposphere. Astronomical observations and measurements establish this relationship among the relevant celestial bodies.

Correct Answer: A

The lowest temperature ever recorded on the Earth is –89.2 °C. Astronomical observations and measurements establish this relationship among the relevant celestial bodies.

Correct Answer: B

The luster of diamond is due to Total internal reflection. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: A

The main cause of air pollution is Burning Of Fuels. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: C

The main cause of floods in the river is Deforestation. Its geographic position or physical characteristics account for the description given.

Correct Answer: B

The main constituent of hemoglobin is Iron. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: B

The main constituent of Pearls are: Calcium Carbonate &Megnesium Carbonate. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: C

The main culprit of greenhouse effect is Carbon dioxide. But which is the second element contributing most to greenhouse effect: Methane (CH4). Its composition and chemical or physical behavior give it the stated classification or property.

Correct Answer: A

The main factor for determining a region’s climate is Latitude. Its geographic position or physical characteristics account for the description given.

Correct Answer: C

The main function of kidney is to remove waste from blood. This follows from the structure and normal physiological function of the relevant organ, tissue, or body system.

Correct Answer: C

The main function of the kidney is To remove waste product from the body. This follows from the structure and normal physiological function of the relevant organ, tissue, or body system.

Correct Answer: D

The major component of honey is Fructose. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: A

The major ingredient of leather is Collagen. This description follows from the defining characteristics and established facts associated with the subject.