Stainless steel is mainly an alloy of:
(a) Copper with Zinc
(b) Red Brass and Yellow Brass
(c) Zinc and Tin
(d) Chromium and Nickle
The nature of infectious diseases and of their control by vaccination was first demonstrated by:
(a) Thomas Huxley
(b) Louis Pasteur
(c) James Clerk Maxwell
(d) None of these
Lack of vitamin C which caused by:
(a) Asthma
(b) Kidney disease
(c) Scurvy
(d) None of these
In jaundice disease skin colour becomes:
(a) White
(b) Black
(c) Yellowish
(d) None of these
A wind which reverses seasonally is known as _______ wind.
(a) Trade
(b) Cyclonic
(c) Monsoon
(d) Polar
The longest bone in human body is:
(a) Femur
(b) Humerus
(c) Metatarsals
(d) None of these
The major source of origin of oxygen on earth surface is:
(a) Photosynthesis
(b) Phytoplankton
(c) Blue-Green Algae
(d) None of these
The type of crop which is able to fix nitrogen from air is known as:
(a) Tuber
(b) Coffee
(c) Legume
(d) Wheat
The resolving power of an electron microscope is much higher than that of an ordinary light microscope because resolving power increases:
(a) If wavelength is short and wavelength of electron beam can be made quite small by accelerating the electrons.
(b) If wavelength is short and light given by electrons has very short wavelength.
(c) If magnification is high and electronic lens provides much higher magnification.
(d) If magnification is high and the electron microscope has a battery of lenses to provide high magnification.
The saliva helps in the digestion of:
(a) Starch
(b) Proteins
(c) Fibres
(d) Fats