Mendeleev Question What are some of the similarities and differences between chemical elements in different parts of the periodic table?

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i hope this your understandings.

the correct answer is

d) rocket launcher

utilized the penal colony

the two things that develop a strong social foundation are: a. separation of church and states e. education received attention separation of church and states separate the illogical  argument that came from religious beliefs to a fact based belief. while education will make us remember the past to avoid the repeat of our mistakes.