Which of the following is an example of chemical change?

مندرجہ ذیل میں سے کون سی کیمیائی تبدیلی کی مثال ہے؟

Sawing of wood

Tearing of paper

Burning of wood

None of these

Burning wood is a chemical change because it involves combustion.

Wood reacts with oxygen to form new substances, such as ash, carbon dioxide, and water vapor.