A/V+(으)니까 ~ Because of A/V, reason for judgement

When added to a verb or adjective, the Korean structure (으)니까 can be use to express ‘because of A/V’.

Examples
지금 바쁘니까 나중에 봐요.
I’m busy now so I’ll see you later.
“이거 왜 샀어요?” “싸니까요.”
“Why did you buy this?” “Because it was cheap.”
추우니까 따뜻한 옷을 입어 보세요.”
Since it’s cold, wear warm clothes.