Viết lại câu. We should chose solar energy. Otherwise we should choose wind power (or)

1.We should chose solas energy. Otherwise we should choose wind power (or)
2.Wind power is renewable .It is sape (and) 
3.We should stop using fossil fuels. They cause pollution (because) 
4.Nuctear power is unlimited. It is unsafe (but)
5.Nuclear power is untimited. It is unsafe (houwever)