Fill in the Blanks SustainabilityOnline version The basics by ioanna ziaka 1 ever reduce principles quality water future air waste persist chemicals fossil globally destruction society ensure provide ensure Sustainability means that things can continue into the . For our planet , it means that the Earth will continue to us with clean , fresh , food and that we all have a high of life for . The four basic of sustainability are : our dependence on fuels , heavy metals , synthetic that in nature , reduce our of nature and that we don't stop people from meeting their needs . We are all part of the same system : environment , , economy . Pollute less - less !