Mrs5K-Your post sparked a discussion at home about what is “mass”, and how is it different from size and weight. So, thank you for that. I learned something beyond the info in your post.
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Portugal is beautiful…wwll the small part of it i’ve seen is
Nantmwar, Shropshire a town in the Welsh Marches
Parthenon, Greece
San Marino
Xenia, Ohio
zadar, Croatia
Brisbane, Australia