Question Detail
Question
What is a significant disadvantage of using water distillers for purification?
Correct Answer
Option B is the correct answer.
Detailed Explanation
Page 51 lists disadvantages: 'High energy costs: water distillers need energy to heat water up over several hours at a time, they are therefore not the most energy-efficient water purification solutions available.'
Hint
Consider the operational costs or by-products mentioned.