If a piece of metal at 70 degrees touches a piece of metal at 40 degrees, . A. Energy will flow from the hotter metal to the cooler metal

B. It’s impossible to tell

C. Nothing will happen

D. Cold will flow from the cooler metal to the hotter metal

the main thing i would use is bricks because if there is a hurricane, there is a great possibility for the house to still stand. and i would also use plexiglass windows instead of regular windows because plexiglass isn't prone to breaking.

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bacteria could be both, harmful and to us. harmful bacteria could make us sick and probably even by getting the chances of getting a disease, but good bacteria fight it off with your immune system. there is always bacteria everywhere we go. we need to make sure to wash our hands after using the restroom, before eating, after eating, after petting an animal too. so you see, bacteria is everywhere and is harmful or . i hope this . : ) : ) : )