Lec 4. environmental systems

Question 1

what is the difference between an open and a closed system?

Answer 1

In a closed system, there is no actual material exchange, it is only energy.

Question 2

What are the three possible states of a system?

Answer 2

Steady state
Transient (increasing)
Transient (decreasing)

Question 3

draw out the hydrological Cycle linking (atmosphere, land and ocean)

Answer 3

ocean to atmosphere = evaporation
atmosphere to ocean = precipitation

atmosphere to land= precipitaion
land to atmosphere = evaporation

land to ocean = Runoff