What are the columns and rows of the periodic talbe of the elements called

To be eligible for naturalization, an immigrant must be able to speak, read, write, and understand: a) his name b) poetry c) the constitution d) the english language

What is a reasonable action that provides safe water for communities?

Ms.ringer asked her class "what are the favorite colors of the students in our school" which student correctly deceives ms.ringer's question