Прошу о помощи!

Измени слова таким образом, что бы они грамматически подходили в предложение.

POLLUTE 
...is one of the most serious problems
PROTECT
The young women didnt know where to look for...
ENVIROMENT
Some of the first... organizations in the world started his work in Britain.
DANGER
It was a very...trip
USE
When the young people first came to Ireland, they were not... to cold weather