Examlex
____________________ is a mixture of gases that is approximately 50-90% methane (CH4).
Machines
Mechanical or electronic devices that perform tasks or assist in carrying out tasks, ranging from simple tools to complex systems.
Average Cost
It refers to the total cost per unit produced, calculated by dividing the total cost of production by the number of units produced.
Copper
A reddish-brown, malleable, ductile metallic element used as a conductor of heat and electricity, and in various alloys.
Zinc
A chemical element with symbol Zn and atomic number 30, used primarily for galvanizing steel to protect against corrosion.
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