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.
Martial Arts Techniques. Traditionally, martial arts were identified as fighting arts that originated in Asia. However, as the understanding of martial arts has expanded, combative arts created outside of Asia began to be labeled as martial arts. Martial arts techniques come in many shapes and sizes.