Everyday Science Mcqs

Which of the following is used in Pencils?A. Graphite
B. Silicon
C. Charcoal
D. Phosphorous

 

Which of the following is a Non Metal that remains Liquid at room temperature?A. Phosphorous
B. Bromine
C. Chlorine
D. Helium

 

Who is Considered as Father of Botany?A. Aristotle
B. Gregor Joghn Mandle
C. Theophrastus
D. Corlous Linnaeous

 

In Eye donation, which part of the eye used?A. Retina
B. Iris
C. Cornea
D. Optic nerve

 

Inhaled air passes through which of the following in the last?

A. Bronchiole
B. Larynx
C. Pharynx
D. Trachea
E. None of these

It is observed that the total pressure exerted by air on the man of average size is around 14.7 lb wt. per square inch. But the man feels quite comfortable,. It is because of__________?

A. An equal and opposite pressure acts from inside
B. of the height of a man
C. of gravity
D. Earth pulls the man upward
E. None of these

The Sun produces most of its energy by_____________?A. Nuclear fusion
B. nuclear fission
C. Burning hydrogen
D. None of these

 

Primary cosmic rays are composed largely of very fast__________?A. Protons
B. Neutrons
C. Electrons
D. Gamma rays

 

The time taken by Sun to revolve around the center of our galaxy is___________?A. 150 million years
B. 250 million years
C. 300 millon years
D. 350 millon years