The third subsystem is the biosphere, which is all living organisms on Earth, including those on the land, in the water, and in the air. The fourth subsystem is the geosphere, which is the solid portion of the Earth, which is made up of rocks and minerals.
21. A- Ecosystem
buong module na yan ah?
Which subsystem suits the statement, Global ecological system inreracting which we ach other?
i think sa number 15 is letter D pero wag mo lagyan ng D