If a scientist were looking for the source of a water pollutant, which would be the best location to test? A. upstream in the same watershed where the pollution is found

B. downstream in the same watershed where the pollution is found

c. downstream in the same river basin where the pollution is found

D. upstream in the river basin next to the one where the pollution is found

HELP M!

the answer is the first option

explanation:

just googled it m8. not that hard

lol

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.