What are the regulations that must the tourist on the train adhere to​

Evaporite rocks te more permeable than reef rocks true false

Most of earths fresh surface water is found in

If we represent the solar system on a scale that allows us to walk from the sun to pluto in a few minutes, then a) the planets are microscopic and the stars are millions of miles away. b) the planets are the size of basketballs and the nearest stars are a few miles away. c) the planets are marble size or smaller and the nearest stars are thousands of miles away.