What happens when two polarizers are placed in a straight line, one behind the other? OA.
They allow light to pass only if they are polarized in exactly the same direction.
OB.
They block all light if they are polarized in exactly the same direction.
O c. They allow light to pass only if their directions of polarizations are exactly 90° apart.
OD. They block all light if their directions of polarizations are exactly 90° apart.
O E. They block all light if their directions of polarizations are either exactly the same or exactly 90° apart.
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Your answer is 32 hope i  

Molybdeum(mo)orruthenium (ru)actually, elements with similar chemical properties as technetium would bemn, re, and bh. this is because elements in the same group/family (column) have similar chemical properties. elements in the same period (row) have the same number of energy levels (or shells).

You need to be more specific.  i really don't know what a "motion map" is.you can draw a graph of an object's position, distance, displacement, speed,velocity, or acceleration versus time, or you can draw a graph of the object's x-position versus its y-position and not give any information about time at all.if the graph presents position or displacement against time,  then constant velocity is a straight line . . i.e. a line that has  constant slope.if the graph shows speed against time, then constant velocityis a horizontal piece of line.if the graph shows acceleration against time, then constant  velocity is a piece of line that lies on the x-axis . . it's value is zero. 

It was crowded with sewer like smells. bad sewer systems