So it includes environmental and physical barriers to effective listening includes furniture placement environmental noises such as sounds off traffic or people talking therefore physiological noise such as a sinus headache or hunger to noise such as stress or anger.
Hope This Helps!!
Where is the question.. or passage? how can we answer this
A(x,y) b(x,y) slope is y-y\x-x
so Ay-BY/AX-BX
d-0\0-d
d/-d=-1
Hands together and hard. Simple hit. And open hit. Hope this help!