I think Aswin has given a good answer here. Another English word that has a very close meaning to "Ruang lingkup" is "context".

I mean you can learn human in biology, but you can only learn human's body like its structure, bones, etc. But you can't learn human behavior, that's not "ruang lingkup biologi". Sorry for long explanation

Ruang lingkup is limitation. Ex : when you study biology, you can learn human, plants, animals, etc. That's "ruang lingkup bilogi", it's variable from an environment and it has a limitation.

Ruang lingkup = surroundings

Arti "Ruang Ringkup" adalah Batasan ^-^