write well-defined set or not well-defined set to justify your answer.
The group of colorful butterflies in the sanctuary. (Not well-defined sets because we have different perspective in choosing beautiful butterflies)
1.)The group of beautiful girls in the Philippines
2.) The best trending tiktok piece collection
3.) Collection of objects that can be worn. 4.)The group of girls in your class.
5.) The collection of difficult question in the chapter of sets.
6.) The collection of active teachers in the campus both Main and East.
7.) The collection of active volcanoes in the Philippines.
8.) The set of objects that are color green.​