Fossil fuels . . . coal, oil, natural gas
Among primitive cultures, wood is an important source.
-- The sample was a fluid.
-- It was a mixture or a suspension ... NOT a solution.
Answer:
A. Splitting water into hydrogen and oxygen.
Explanation:
A chemical change produces a new substance. ... A physical change does not produce a new substance. Changes in state or phase (melting, freezing, vaporization, condensation, sublimation) are physical changes.
