Quais são as providências que o poder público deve tomar para evitar que eventos desastrosos provocados pela chuva coloque em risco a vida das pessoas?

Grow more forests, construct channels and dams.

Explanation:

The government should take the measures to prevent disastrous events caused by rain such as grow more forests, construct channels which can take more water away from the populated areas and also construct dams. By growing more forests in those areas where more flood occurs can prevent flood because forest absorb all the water passes through it which decreases intensity of flood. Dams also plays an important role in controlling of floods because it can stores water and decrease intensity of flood.