In potassium-argon dating, how does the proportion of remaining potassium in a rock or fossil change over time?

Which two statements best shows the effects of the congress of vienna on eroupe

What was new about the writing system developed by the phoenicians, and why was this important to the growth of knowledge and spread of ideas?

How did the russian revolution impact world war i? a) the russians required the allied powers to come to their aid and defeat the radical groups. b) the russians pulled out from the war, enabling the germans to focus on the western front. c) the russians created new technological advancements that were used by the allied powers to win. d) the russians created a new communist government that aligned with the central powers instead.