Ask your teacher about the sustainability challenge that your class has been set by the enviro team.
It runs for two weeks from Thurs 27 Aug to Thurs 10 Sept.
Sustainability: avoidance of the depletion of natural resources in order to maintain an ecological balance.
Ecological: relating to or concerned with the relation of living organisms to one another and to their physical surroundings.
"pollution is posing a serious threat to the ecological balance of the oceans"
