Examlex
A (n) _____ travels from computer to computer in a network,but it does not usually erase data.
Coal
A combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams, used as a fossil fuel for producing electricity and heat.
Global Coal Supplies
The total quantity of coal available for use worldwide, encompassing both proven reserves and resources yet to be discovered.
Depleted
A condition where a significant amount of a resource or substance has been consumed or removed, often leading to scarcity.
Oil Sand
is a type of unconventional petroleum deposit, consisting of sand or sandstone impregnated with bitumen, a dense and extremely viscous form of petroleum.
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