Who used one time pad?

Which soil layers comprise the topsoil? o horizon a horizon b horizon c horizon

Your'e sent a set of coordinates for the city of bejing. the coordinates are 39 degrees north latitude and 116 degrees east longitude. what do these numbers tell you about

Why do we always see the same side of the moon? 1. the moon rotates at the same speed as the earth rotates. 2. the moon revolves around the earth at the same rate the earth rotates on its axis. 3. the moon rotates on its axis at about the same speed as it revolves around the earth.