Answer:

1.RESEARCH-is a way of looking for new in formation,new understanding,and new facts.

2.RELEVANT -The state of being closely connected or appropriate to the matter in the hand.

3.CONTROVERSIAL-is use to describe someone or something that causes people to get upset and argue.

4.TRACK-is a narrow road or path.

5.JUDGEMENT- a decision or opinion (as a court) given after careful comsideration.

Explanation:

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Answer:

1. RESEARCH - it is systematic investigation to establish facts
   research in a sentence: I conducted a research in a list of words in my assignment.
   
2. RELEVANT - having a bearing on or connection with the subject at issue
   relevant in a sentence: Relevant things are always helpful and on point in our lives.
   
3. CONTROVERSIAL - marked by or capable of arousing controversy. Controversies are usually public disagreements about important matters.
   controversial in a sentence: Upcoming elections in the Philippines this May is a controversial topic to talk about.
   
4. TRACK - a line or route along which something travels or moves. It is any road or path affording passage especially a rough one
   track in a sentence: Dogs has a strong sense of smell. They can track a man and distinguish his whereabouts just by smelling
   
5. JUDGMENT - is the mental ability to understand something, form an opinion and reach a decision.
   judgment in a sentence: Sometimes, I am reluctant to make judgment about a person's character.