A Weighty: Issue Ielts Reading Answers __full__

"For more than a century, the IPK had been treated as the perfect standard. However, when the IPK was compared with its official copies in 2007, a disturbing fact emerged. The IPK was found to be 50 micrograms lighter than the average of the copies. No one knows why. It could be due to surface contamination, loss of gas from the alloy, or a mysterious quantum effect."

Look for answers related to the "affordability" of processed foods. The text often argues that the market has made it financially logical for low-income families to buy high-calorie foods. A Weighty Issue Ielts Reading Answers

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