Answer: I think the unknown substance is water.
Explanation: mark me the brainly-est
Answer:
Insight Therapy Or Perspective
Explanation:
This is where one try's to determine ones action emotions and thoughts ahead of time to prevent or prevail a situation.
The answer is: Sigmund Freud
In His comprehensive theory of personality, he introduced several terms that he considered as parts of human's psyche, such as unconscious mind, psycho sexualstages, and defense mechanisms.
Unconscious mind refers to the feelings and urges that exist outside of our awareness, psychosexua;l stages refers to the development of sexual libido throughout human lives that correlated with their behavior. Defense mechanism refers to the efforts made by individual's mind in order to protect us from horrible/unacceptable emotion.