Binaural fusion is the process in which the brain processes information from each ear and creates two different perceptions of the location of sound.

select the best answer from the choices provided

a.trues
b.false

That's false.  Yes, the brain does process information from each ear,
but it uses the slight difference between them to create ONE perception
of the location of a sound. 

If someone stands behind you and snaps his fingers, that's how you can tell,
without looking, whether he's standing behind your right shoulder or behind
your left shoulder.

The correct answer could be A. or C. but most likely i'm going with c because if a beaver family blocked off a part of a river using a dam it would most likely result in a drought on side (X) of the river. But how you say, a dead tree could have fallen and blocked the water allowed behind the dam, and when the tree is removed the water that flows back towards the dam would destroy it because of the water pressure from the blocked tree being moved