B; As far as the relation between humans and the environment, it is obvious how much they relied on it. Not only as a food source, but for economic growth and sustainability as well. The other answers make valid points but in the context of this question, the only one that even mentions the relation is B.
The answer to your question is yes the same amount of water is always on the earth when living thing die the water that's they consumed is restored to the earth
Human cells as well as plant and animal cells
This is the Kelvin scale - it's essentially the same as the Celsius (that is, one degree of Celsius is equivalent to one degree Kelvin, and the same cannot be said about Fahrenheit).
In Celcius the absolute zero is equivalent to <span> −273.15 °C and in Fahrenheit it's </span><span><span>−459.67 °F.</span> </span>
B. sedimentary ...hope this helps
