Question

3. When you buy a new jar of jam from the market, you find it really difficult to open the lid of the jar. If you immerse the upper end of the jar into the hot water bowl for 5 to 10 minutes, you can easily open the lid of the jar. Can you give the reason for this?​

Answer 1

Answer:

because the heating effect release the the tightness of the bottle

Answer 2

Answer:

Refer to the attachment

It may help you ☺

~BANGTAN ARMY