"He goes to America everyday."
Translation:वह हर दिन अमेरिका जाता है।
I can think of only one alternate - वह अमेरिका हर दिन जाता है and this sounds unnatural as compared to the official answer.
First of all, हिन्दी doesn't have prepositions. It has postpositions. :)
Secondly, these type of sentences don't need them. Other examples
वह घर जा रहा है - He is going home.
मैं वहाँ नहीं जा रहा - I'm not going there.
तुम स्कूल जा रहे? - You're going to school?
नेहा दिल्ली जा रही है - Neha is going to Delhi.