Which of the following is an example of pseudoscience? A
A claim that pretends to be scientific but has not actually been tested
B
A hypothesis that the results did not support
с
A theory that has been modified based on new evidence
D
A law that describes a phenomenon observable only at some scales

describe matter a earth

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.