Larvae and pupae normally float. They must use their muscles in order to dive down through water. What type of energy is used by the muscles?
I
A. Sound energy from the air
B. Thermal energy from the water
C. Chemical potential energy from their cells
D. Gravitational potential energy from Earth

yes they ca   is ur ansswerrr

i just learnt this recently but i need to look through my notes again

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.