General MCQs

Correct Answer: B

Hydrogen is the lightest substance. The result follows from how light is reflected, refracted, focused, or distributed across the electromagnetic spectrum.

Correct Answer: D

butane is the major constituents of LPG. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: B

Tornado is the most severe storm. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: A

Microbiology is the study of micro- organisms, mostly viruses and single called organisms such as bacteria, yeasts and protozoa. The term is defined by the subject, process, or characteristic described in the question.

Correct Answer: A

White bellbird is the world’s loudest bird. This is based on the organism’s established anatomy, behavior, or biological classification.

Correct Answer: B

Stethoscope is used for hearing the sound of heart and lungs. This follows from the structure and normal physiological function of the relevant organ, tissue, or body system.

Correct Answer: C

Sulphur is used in beauty parlours for hair setting. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: A

Graphite is used in Pencils. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: A

Reverse Osmosis is used in water purification. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: C

Cadmium is used to control rods in nuclear fission. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: B

Ionosphere is layers make radio transmission possible. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: A

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

Correct Answer: C

J is letter does not represent in periodic table. The other listed choices share the property in the question, while this choice does not.

Correct Answer: C

Acetylene and oxygen is mixture of gases is required in gas welding. Its composition and chemical or physical behavior give it the stated classification or property.

Correct Answer: C

Argon is noble gases is abundant in air. Its composition and chemical or physical behavior give it the stated classification or property.

Correct Answer: B

North Pacific Ocean is ocean is the most polluted ocean of the world. Its geographic position or physical characteristics account for the description given.

Correct Answer: A

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

Correct Answer: B

Phytoplankton is organisms releases molecular oxygen into water. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: D

All of the above is phenomena of light are involved in the formation of a rainbow. The result follows from how light is reflected, refracted, focused, or distributed across the electromagnetic spectrum.

Correct Answer: C

Gamma rays is Rays are more Penetrating. The result follows from how light is reflected, refracted, focused, or distributed across the electromagnetic spectrum.