Translation:The bread is food.
I'm a bit confused, I feel like Duolingo isn't explaining anything to me it's just giving me words and asking what they mean. Its not really hard for me to understand because ive practiced Hangul before but it dosent explain why 이 is there after 빵 (bread) and I still dont know why in the sentence it is 빵이 음식입니다. Instead of just 빵이 음식. Basically I dont understand what the 입니다 part in the sencence means.
Korean Unnie gives one of the best explanations of this topic. Follow her on Youtube for more Korean learning videos! ^_^
Quickly, Korean has particles to describe what it is in the sentence. The particle 이 is an object particle giving the meaning that bread is "food" and not something else. This makes "food" the subject and "bread" is the object. Because the verb 입니다 is used, the particle is never used.
입니다 is the present tense high informal form of the verb 이다 "to be". This is one of the few Korean verbs that will never need a particle used just before it.
이 and 가 are the same particles. 이 is only used for words ending in a consonant, and 가 is only used with words ending in a vowel. (The rest of the particles are much easier to remember).