Since polystyrene disintegrates slowly, one of the main challenges that it poses on the environment is that exposure to the sun causes it to photodegrade, meaning it breaks apart into smaller and smaller pieces. The broken down material ends up looking like food to small animals.
United States Congress elections, 2016. A total of 469 seats in the U.S. Congress (34 Senate seats and all 435 House seats) were up for election on November 8, 2016. The big story of the 2016 congressional election cycle was whether or not the Democratic Party would be able to regain control of the Senate.
Report Abuse. All 435 Representatives are up for re-election every two years. Even though you didn't ask, Senators serve 6 year terms, and 1/3 of the Senators are up for re-election every two years.Thus only 1/3 of the Senate seats are up for grabs every two years, but all seats in the House are up for grabs.Barbara E from Houston Texas Â· 7 years ago.hus only 1/3 of the Senate seats are up for grabs every two years, but all seats in the House are up for grabs. Barbara E from Houston Texas Â· 7 years ago.