What is the difference between felice and contento?
Felice means "happy" and contento means "glad". However, you can typically use them interchangeably.
In English we can say are not because population can be plural. DL hasn't recognised that in this question.
While 'population' does refer to many people, the noun is singular. The population are not happy is incorrect English.
what a stupid correction! My snswer is correct too!
I used "The populous is not happy". It was marked wrong, why?
Populous is an adjective, not a noun.