It maybe seawater...if I’m correct but it depends on which element that you are talking about
The outside neurons are mainly composed of dissolved salts and or other chemical substances
The brains sends nerve waves to other parts of the body to make our skin say that something hurts.
Answer:
is to provide the audience with some context for the play, but it can also be a chance to create something stunning to draw in the audience.
Explanation:

1) x=9, because we can use the Pythagorean theorem, x^2 + 144 = 225, x^2 = 81
2)
, because 6^2 +6^2 = 72, 
3)
, because 
hope this helps... load for images!
Answer:
p180
Explanation:
i took the test and got it right