Which one is known as magnetite-
(A)
(B)
(C)
(D)
Plant which does not bear flower but have seed–
(A) Orchides
(B) Gymnoperm
(C) Angiosperm
(D) Crytogamus
When a wave is intercepted by an article, the rays bend round the obstacle particle. The phenomenon is known as-
(A) Interference
(B) Diffraction
(C) Polarisation
(D) Total internal reflection
The basic structural and functional unit of living organisms is-
(A) Cell
(B) Tissue
(C) Organ
(D) Systems
The colour of the ocean appears to be blue because the sunlight falling on it is-
(A) Reflected
(B) Refracted
(C) Diffracted
(D) Scattered
The planet which has the highest surface temperature is
(A) Jupiter
(B) Earth
(C) Pluto
(D) Venus
Which one of the following elements exhibits the greatest tendency to lose electrons?
(A) Fluorine
(B) Lithium
(C) Oxygen
(D) Zinc
Atmospheric temperature increasing at the higher altitudes is called
(A) Radiation
(B) Inversion
(C) Conduction
(D) Convection
___ elements have the largest atoms.
(A) F
(B) O
(C) H
(D) Li
Weight of an object on the moon is ______ the weight of the object on earth.
(A) 1/5th
(B) 1/2th
(C) 1/6th
(D) Equal to
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