Okay what is the question :)
In the excretory system, the waste materials are filtered from the blood. They are gotten rid off in order to maintain internal chemical homeostasis.
<h3>What is the Excretory System?</h3>
The excretory system can be described as a biological system that aids the body in removing unwanted materials from fluids of the body of organisms.
The main reason for the function of the excretory system is to maintain internal chemical homeostasis and prevent the body from damage.
Learn more about the excretory system on:
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If the pressure, volume, and temperature are 202650 Pa, 0.004 cubic meters, and 400.15 K. Then the number of the mole is 0.24 mol.
<h3>What is thermodynamics?</h3>
It is a branch of science that deals with heat and work transfer.
We know that the Ideal gas equation is given as
PV = nRT
Where
P = Pressure (Pa)
V = Volume (in m³)
n = Number of moles (mol)
R = universal gas constant (8.314 J⋅K⁻¹⋅mol⁻¹)
T = temperature (in K)
We have
P = 2 atm = 202.65 × 10³ Pa
V = 4 liters = 0.004 m³
T = 127 °C = 400.15 K
Then we have
Then the number of the mole will be

More about the thermodynamics link is given below.
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Answer:
He could have shut off the power first and de-energize the circuits in order to prevent being electrocuted.
Explanation:
Electrical Safety is very important, <em>especially for those working in such hazardous situations. </em>Almost all our things in the society are electrically-operated, thus it even becomes relevant to have an idea on how we can prevent from obtaining an electrical shock or burns due to faulty electrical tools.
In the worker's scenario above, it is clear that he did not shut off the power at the circuit breaker panel. This is the most important thing that one must include in his plan when attempting to correct an electrical problem. You must find where the electrical switch, fuses and circuit breakers are at first. Once you find their location, you have to turn them off (even if the circuits are of low-voltage).<u> In order to make sure that they are really turned off, test the circuits first. This will help you ensure that they are, indeed, de-energized.</u>
We have no idea what your reading hahha