A) The crust beneath the ocean basin is composed of basaltic rock
B) Acidic waves are highly viscous with high malign point and are light in colour
C) Predominance of inter montane plateaus are characteristics feature of young fold mountain regions of the world
D) 'The zone of low-velocity' of seismic waves is found between outer core and inner core
Correct Answer: D
Solution :[d] The oceans are mostly under laid by dark coloured followed down by a thick greenish and tremendously hot layer of magma. Acidic waves are highly viscous due to pre-dame of silica content with high melting point and are light (yellowish). Inter montane plateaus are found in the regions of young fold mountain as a characteristic feature of these mountain ranges, The zone of low-velocity of seismic waves is found between the lithosphere and the asthenosphere, so Statement 4 is incorrect.
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