What are the fundamental cannons for civil engineering​

What is the mercury length of time for one revolution around the sun?

Yo! a girl out ! i will give brainliest! hu one of the main reasons societies settled along rivers in the neolithic era was because a) the village elders demanded it. b) the land there was more valuable. c) it was more safe and secure there. d) it provided irrigation for farming.

Which barrier to economic development is shown in the following examples?