You have been asked to make a presentation for the annual convention of Citizens for a Greener Planet, a national environmental group on the idea of the sustainable development.

Describe the given:

1) Define the sustainability.

2) describe the cycling and recycling of carbon, phosphorus and nitrogen via both the living (biotic) and nonliving (abiotic) components of the ecosystems.

3) Describe sustainability and stewardship when pertaining to the factors which brought regarding the collapse of the Easter Island civilization.