(A) Magnetic field
(B) Mechanical field
(C) Electrical field
(D) None of the above
Author:
Which element is common in glass, china clay, cement and quartz?
(A) Calcium
(B) Potassium
(C) Nitrogen
(D) Silicon
Treated bacterica or viruses or one of their proteins is called?
(A) Vaccine
(B) Antigen
(C) Pain Killer
(D) None of the above
Freezing point of heavy water is?
(A) 3.00 Degree Centigrade
(B) 3.72 Degree Centigrade
(C) 3.82 Degree Centigrade
(D) 4.00 Degree Centigrade
Satellite moving round the earth with a uniform speed has?
(A) Uniform acceleration
(B) Acceleration towards right
(C) Acceleration towards down
(D) None of the above
Element without which the earth life can not survive is?
(A) Nitrogen
(B) Silicon
(C) Oxygen
(D) Nitrogen
Heat energy passes from hotter to __ bodies.
(A) Hotter
(B) Colder
(C) Don’t passes from any body
(D) All of the above
__ forms about half of the earth crust.
(A) Oxygen
(B) Copper
(C) Nitrogen
(D) Silicon