"The animals are eating the strawberries."
Translation:Dyrene spiser jordbærene.
Install a Norwegian or international keyboard, and you're good to go. ALT codes are an alternative, but not a particularly practical one in the long run.
If you're on a mobile device, you may already have access to the Norwegian characters by holding down "a" for "å" and "æ", and "o" for "ø".
When you learn a new language, the alphabet is part of the package deal. We're not "fixing" it.
Because "the strawberries" is in definite plural form ( the strawberries instead of just strawberries or strawberry). From Duo's notes section:
"With very few exceptions, all nouns can be converted to the definite plural form, i.e. the books, the cows, the dogs... by changing the -er ending on the plural form to an -ene ending...[neuter nouns] can [also] become definite plurals by adding on an -a ending instead. The choice is yours, but the -ene ending is somewhat more common."