Final answer:
Photosynthesis is an example of an endothermic reaction, while combustion and fireworks are examples of exothermic reactions.
Step-by-step explanation:
Photosynthesis is an example of an endothermic reaction. During photosynthesis, plants convert sunlight, water, and carbon dioxide into glucose and oxygen. This process requires the absorption of energy from sunlight, making it endothermic.
On the other hand, combustion and fireworks are examples of exothermic reactions. Combustion is the rapid oxidation of a fuel, such as burning wood or gasoline, and releases heat and light energy. Fireworks involve the combustion of chemicals, producing bright colored lights and loud sounds.
While bubbles forming in soda can involve a chemical reaction, it is not an example of an endothermic or exothermic reaction. The formation of bubbles in soda is primarily due to the release of dissolved carbon dioxide gas when the pressure is reduced, such as when a soda bottle is opened.
Learn more about Endothermic and Exothermic Reactions