During fractional crystallization of a magma body, the first rock that is expected to crystallize from the magma will bea. more mafic than the magma. b.identical in chemical composition to the magma. c.more felsic than the magma. d.The composition of the rock is not predictable.

How would i answer this in a exam. orange - sea temperature is over 27 red arrows - tropical storm routes

[ou.01]which of these is the most likely use of an electromagnetic wave which has wavelength shorter than microwaves but longer than visible light? o heat food safely o neat food safely o take images of bones and teeth o transmit radio and cellular phone signals o take images of bones and teeth o transmit radio and cellular phone signals o detect the location of objects which emit heat

What two advantages do the coastal countries of west africa have over the sahel countriesfertile soil and mineral resources temperatures and terrain human resources and natural resources weather patterns and location