How do the Uralic languages, like Finnish and Hungarian, differ from their Indo-European neighbors?

One of the most striking differences between Uralic and Indo-European languages lies in their grammatical structure. Uralic languages are predominantly agglutinative, meaning that they form words by joining together several morphemes, each with a distinct meaning. This differs from the fusion of morphemes often seen in Indo-European languages. As a result, Uralic languages tend to have longer words with multiple affixes.