Explain benzene gives rather electrophilic substitution reaction than nucleophilic sinstitution reaction where's alkene gives electrorphilic addition reaction?

 Benzene undergoes electrophilic substitution reactions due to its stable aromatic ring, where the pi electrons are delocalized. The electron-rich nature of benzene makes it less prone to nucleophilic substitution. In contrast, alkene's double bond readily reacts in electrophilic addition reactions because the pi electrons are localized and available for reaction with electrophiles.