The subordinate clause in this sentence is because I forgot to buy milk. The whole sentence is used as an adverb. Adverbs are used to answer questions such as where, when, or in this case, why.
Why did I have root beer in my cereal? Because I forgot to buy milk.
Because they give clues & statements to show as such
Hello,
1. is tiger, fighter, fire
2. fighter, fire
3. roar ans champion
4. i went from zero, to my own hero
hope this helps
Please mark me as Brainliest