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Degrees of loudness and softness in music are called dynamics. I don’t really have an explanation for this, that’s just what they’re called. I know because I’m a violinist and learned it when I first started playing.
Answer:
D) surface area of the water
Explanation:
The pressure at the bottom of a column of fluid is given by Stevino's law:

where
p is the pressure at the bottom of the column
is the density
g is the acceleration due to gravity
h is the depth of the liquid
So, we see that the pressure at the bottom of a jug filled with water depends on all these quantities:
A) depth of the liquid
B) acceleration due to gravity
C) density of water
While it does not depend on:
D) surface area of the water
Radiocarbon saying assume the half life for radioistopes change over time. The half life of C -14 is 5730 years