ENV100Y5 Lecture Notes - Lecture 10: Positive Feedback, Lake Ontario, Geosphere
69
ENV100Y5 Full Course Notes
Verified Note
69 documents
Document Summary
Hould (cid:271)e (cid:272)alled (cid:862)geosphe(cid:396)e(cid:863: atmosphere, hydrosphere, biosphere. Network of relationships: both i(cid:374)side a(cid:374)d outside of the s(cid:455)ste(cid:373)(cid:859)s (cid:271)ou(cid:374)da(cid:396)ies. Types of systems: properties of boundaries; dependent on boundaries. Isolated system: neither energy nor matter can be exchanged across the boundaries: closed system: energy can be exchanged across the boundaries, but matter cannot. Things are connected together: open system: both matter and energy can be exchanged across the boundaries. Harder to study than closed system because things can be added or deducted. Anything can be considered a system as long as it is what you define as a system. Fish are able to swim in an out of systems, so they are all open systems: energy is able to come in and out, as well as matter. Big box has water vapor leaving the system to go into the atmosphere. Earth itself approximates a closed system; not a perfect closed system however.
