Which everyday process causes wood to appear to shrink and blacken when burned but conserves matter overall?
A
Physical change only
B
Sublimation
C
Condensation
D
Conservation of matter through combustion
Correct Answer: Option D — Conservation of matter through combustion
Explanation:
When wood burns carbon dioxide water vapour and ash are produced conserving total matter according to the law of conservation of mass even though the solid wood appears to vanish.