SORU: paragrafta boş bırakılan yere uygun düşen cümleyi bulunuz
Flooding is an environmental disaster that may have substantial and long-lasting chemical effects. There are many possible sources of chemical contamination during and after a flood. ----. Chemicals released into the environment may have a variety of adverse ecological effects. These effects can be long-term or short-term in the normal functioning of the ecosystem.