How did the work of john dalton influence dmitri mendeleyev? why was their work so important

i just need the points

explanation:

after the roman empire, the catholic church began to unify by taking on many duties of a government.

north atlantic treaty organization.

answer is b.

  it is always the best policy to have good communication and good relations between individuals and, specially, between leaders of the countries. for this purpose, among others, there is a common place, the united nations, where the representants can present his and learn about the other country's policies.