1. Which diagram represents the three pillars of sustainable development?
2. Which of them shows economy and society bounded by the environment?
3. Read the following explanation and decide which of the two diagrams it describes:
The economy is, in the first instance, a subsystem of human society which is itself, in the second instance, a subsystem of the totality of life on Earth. And no subsystem can expand beyond the capacity of the total system of which it is a part.
4. Which diagram do you think expresses the idea of sustainability better?
