901 : Who is the inventor of Refrigerator?
Ans : Harrison & Catlin
902 : Father of Conditioned Reflex?
Ans : Ivan Pavlov
903 : …………..is drug that acts on central nervous system and is used to calm; decrease anxiety or help a person to sleep?
Ans : Tranquilizer
904 : Starting up an operating system is called ?
Ans : Booting
905 : Who is the inventor of Helium?
Ans : Janssen & Lockyer
906 : Which is the longest cell of human body?
Ans : Nerve cell(neuron)
907 : Who is the inventor of Salk Vaccine (Anti Polio)?
Ans : Dr.Jonas E.Salk
908 : Who is the inventor of Mitochondria?
Ans : C.Benda
909 : Who is the inventor of Submarine?
Ans : Bushell
910 : Which organ of the body is affected by Goitre?
Ans : Thyroid
911 : Tuberculosis causing bacteria is ?
Ans : Mycobacterium tuberculosis
912 : Thyroid gland is popularly known as ?
Ans : Adam’s Apple.
913 : www stands for?
Ans : World Wide Web
914 : Who is the inventor of Disc Brake?
Ans : Lanchester
915 : Colour blindness also known as Daltonism is a genetic disorder and It is the inability to distinguish between red colour and ?
Ans : Green colour