Explain in one or two sentences whether the series converges or diverges

MATHEMATICS · Subjective · AP · Calculus BC · Infinite Sequences and Series · Infinite Sequences and Series

Problem

Explain in one or two sentences whether the series

\displaystyle \sum_{n=1}^{\infty}\frac{1}{n^{0.9}}

converges or diverges, and state the reason for your conclusion.