In an endothermic reaction, the opposite happens. In this reaction, heat is absorbed. Or more exactly, heat is required to complete the reaction. Photosynthesis in plants is a chemical endothermic reaction. In this process, the chloroplasts in the leaves absorb the sunlight.
Martial arts. Martial arts are codified systems and traditions of combat practices, which are practiced for a number of reasons: as self-defense, military and law enforcement applications, mental and spiritual development; as well as entertainment and the preservation of a nation's intangible cultural heritage.
In the 90âs the US popularized Mixed Martial Arts (MMA). MMA is a full contact, combat sport, that combines grappling and striking, with standing and ground fighting. MMA allows a wide variety of martial arts and techniques, creating a unique dynamic that favors a versatile martial artist.