4.1 Water systemsIB Environmental Systems and Societies HL: Mind map
Cycle
Steady state
HL: Properties
Water systems
SL and HL
storesHL
HL: Carbon sink
HL: Layers and currents
Exam tips
Written by the Exaim team, led by Shaun Daswani (Head of Upper Secondary, Improve ME Institute; MSc Financial Mathematics, Imperial College London; BSc, UCL) and Jason Daswani (operational lead, Improve ME Institute; LSE).