They both turn something on, and the way they are different is the way they turn it off<span>
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D an average train goes 300 km/h or 190-220 mph
How it looks. basically the thing that tells you how it change. for example if an ice cube was melted (heat), it only changed physically not chemically as the h20 molecules are still there. however lets say you burn woos— you cant get that would back. its ash now and it has changed chemically.
The best answer here is B) gasoline.
Gasoline is a oil-derived product. Oil is a nonrenewable resource.
Water would have a much lower boiling point much like its other hydrides and it would loss its ability to dissolve polar substances plus it couldn't form water columns so no more cohesion between water molecules
