Answer: Synonyms
Explanation: Antonyms are words opposite in meaning to another. Synonyms are words or phrases that mean exactly or nearly the same as another word or phrase in the same language. Trash is defined as discarded matter; refuse- and rubbish is defined as waste material; refuse or litter. It is evident that the two words are very similar in meaning so they are synonyms.
Answer:
1.The equipment is broken by someone.
2.Firstly the liguid must be heated.
3.Safety glasses must be worn in laboratory.
4.Science competition is won by a very young student.
5.A brilliant scientist is Dr liu .( this 5 no ans might be wrong)