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Read the sticky notes left by a time-traveler for their younger self. Select ALL the notes that are grammatically correct conditional sentences.
The correct answers are If you invest in that weird fruit company called Apple, you will be very rich in twenty years. and If you had listened to Mom about the haircut in 2015, you wouldn't have ruined your graduation photos.
The first correct option is a flawless First Conditional (If + present, will + base verb) predicting a future result.
The second correct option is a perfect Third Conditional (If + past perfect, would have + past participle) lamenting a past mistake.
"If water will freeze..." is incorrect; zero conditionals require the present simple in both clauses ("If water freezes...").
"If I was you, I will avoid..." mixes a second conditional "if" clause with a first conditional result. It should be "If I were you, I would avoid..."