What type of reaction is shown below?

anabolic

combustion

catabolic

The type of reaction is shown below is combustion. See the explanation below, please.

Explanation:

In the reaction described in the graph corresponds to combustion, where a fuel (alkane: methane, propane, etc.) acts with 02:

Fuel + 02 -> CO2 + H20 + thermal energy

(remember to balance the equation, according to each reaction under the compound used under fuel)

Catabolic Reaction  is shown below.

Explanation:

The diagram shows the reaction where huge particle is  shattered  into small particles along with the release of energy. This happens in catabolic reactions only. Catabolic reactions are metabolic reaction that happens within the cell. It is a spontaneous process.The breakdown of molecules in catabolic reaction produces certain amount of free energy, This free energy  is known as 'exergonic' is released into the environment

For Example:

Decomposition of hydrogen peroxide into oxygen and water is a catabolic reaction.