What activation energy was used to start the chemical reaction in the burning marshmallow?

This question is incomplete

Explanation:

This question is incomplete. However, let's understand some terms

Activation energy is the minimum amount of energy required for a reaction to proceed. Under normal condition, when the activation energy is high, it takes longer for the reaction to proceed than when it is low.

The burning of marshmallow is an exothermic reaction as it involves the transfer of heat energy into the environment.

the second type of galaxy is called a barred spiral, which has a thing called a bar straddling the nucleus

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explanation: