John is studying the different states of matter. Today, he has a matter in three states in front of him, state A, state B, and state C. State A is in solid state. State B is in liquid state. And, state C is in gaseous state. He needs to determine the properties of each state. If energy is removed, state B would adopt which state, state A or state C?
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Answer: state A

John is comparing his medical record with his father's and son's medical records. John is 40 years old; his father is 70 years old; and his son is 10 years old. It appears that both John and his father has Retinitis. But his son does not have Retinitis. Whould Retinitis be a leading cause or minor cause of blindness for John?
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Answer: leading cause

Nigeria invested in sand mining and started mining coastal barriers. Congo continued preserving their picturesque beaches. Which country caused less turbidity in the coastal water?
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Answer:
Congo