Explosives are classified into two main types: chemical explosives and nuclear explosives. Chemical explosives, such as dynamite and TNT, release energy through rapid chemical reactions. They are commonly used in construction, mining, and military applications. Nuclear explosives, on the other hand, derive their energy from nuclear reactions, either fission or fusion. These explosives, like those used in atomic bombs, release vast amounts of energy and are primarily associated with military use. Both types of explosives have specific applications and safety protocols to manage their inherent risks.