What is always used to find a coordinate?

What is the name of the ocean current that affects the british isles? how does it influence their climate?

Which factors add to the greenhouse effect and are caused by human activities?

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.