Hailey’s comet is visible after every_________?

In human osmoregulation takes place by___________?A. Liver
B. Kidney
C. Spleen
D. Lungs

 

The Mirror used in the Automobiles are___________?

A. Concave
B. Convex
C. Plains
D. Reflective

Which is the biggest star in the Universe?

A. UY Scuti
B. Rigel
C. Canopus
D. Arcturus

The largest known star in the universe is UY Scuti, a hypergiant with a radius around 1,700 times larger than the sun. And it’s not alone in dwarfing Earth’s dominant star.

Each day human body breathe in __________ liters of air.

A. 5,000 to 10,000
B. 10,000 to 15,000
C. 15,000 to 20,000
D. 20,000 to 25,000
The average adult at rest inhales and exhales something like 7 or 8 liters (about one-fourth of a cubic foot) of air per minute. That totals something like 11,000 liters of air (388 cubic feet) in a day.
The air that is inhaled is about 20-percent oxygen, and the air that is exhaled is about 15-percent oxygen, so about 5-percent of the volume of air is consumed in each breath and converted to carbon dioxide. Therefore, a human being uses about 550 liters of pure oxygen (19 cubic feet) per day.

In a fission nuclear reaction , a heavy nucleus breaks up into smaller nuclei whereas in another nuclear reaction two or more than two possibly nuclei are fused to form a heavy nucleus This nuclear reaction is called ?

A. Chemical Reaction
B. Nuclear reaction
C. Fission nuclear reaction
D. Fusion nuclear reaction
E. None of these

Constellations referred to as zodiac, are__________?

A. Imaginary regions that encompass the path of the planets
B. Signs of Roman gods
C. A group of stars
D. None of these