List the three ways in which water reaches the atmosphere and tell which way accounts for the most of the water in the atmosphere

Imagine you had to physically add electrons, one at a time, to a previously neutral conductor. you add one electron very easily, but the second electron requires more work. in your initial post to the discussion, explain why this is. also, what happens to the work needed to add the third, fourth, fifth, and subsequent electrons

Which is not true about oxygen-17 and oxygen-18?

Explain what happens at the saturation point when adding salt to water at room temperature.