Explanation:
A thermos flask has double walls, which are evacuated and the vacuum bottle is silvered on the inside. The vacuum between the two walls prevents heat being transferred from the inside to the outside by conduction and convection.
Answer:
they do be obtaining issues b/c of bullying doe
45nyear old man hu
Is there anything i can read and understand? just reply me if you have
salad
its good for you and then u prob wont be fat
