Read the following statements and identify the correct answer:
 
1. Assertion: Burning magnesium ribbon is a chemical change.

Reason: Heat and light are produced during the burning of magnesium ribbon which is the only reason why burning magnesium ribbon is considered as chemical change.
 
2. Assertion : Fireflies produce light because they are very hot.

Reason : The light produced by fireflies is due to a chemical change called bioluminescence.