Can someone please give me a clear definition of what ceramics are? It will really help! :)

The speed of light is around 6.706×10^8 miles per hour. what is the speed of light in units of miles per minute?

Esign techniques and materials that reduce the negative environmental impact of a structure are referred to as

Darla claims that the first periodic table developed by mendeleev was not completely accurate, so it is not useful at all. harmony argues that it establish the periodic table we use today, making it more credible. who is correct and why? darla is correct, because a model that has any mistakes should be thrown out. darla is correct, because a good model would not need to change. harmony is correct, because mendeleev’s model had all of the information correct in the first version. harmony is correct, because mendeleev’s model made predictions that came true.