The Mountains in Greece contributed to the rise of the city states because it gave them protection from attack on the low parts of Greece.---Will this work?
Members of the House of Representatives<span> serve two-year </span>terms<span> and are considered for reelection every even year. </span>Senators<span> but, serve six-year </span>terms<span> and elections to the </span>Senate<span> are staggered over even years so that only about 1/3 of the </span>Senate<span> is up for reelection during any election.</span>