GK: What determines the color of a person's eyes? Click here to know the correct answer

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Question 1: What determines the color of a person's eyes? 

Answer: Iris 

Question 2: What is the detection of landmines?

Answer: By kite 

Question 3: What is the effect of running on human blood pressure? 

Answer: Blood pressure rises

Question 3: After how many years will the Sun's fuel run out?

Answer: 5 billion years later 

Question 5: Who first studied the blood circulatory system?

Answer: Harvey