Steel is a mixture of iron and carbon. it can be separated into iron and carbon by melting it. what is steel?
a. a compound
b. an element
c. a molecule
d. an alloy

i already answered it by 34/s

in most common fires, oxygen is needed for an oxidation reaction to takes place. the combination of oxygen with any element as fuel can create fire and combustion will occur especially if wood, light materials and other combustible things are combine with oxygen.