USE the words :safe, healthy, resources, communities, free, human, practice, economic, balance, rights
Environmental,  and social sustainability are the 3 contributors to the maintenance of our planet in theory and . 
For the 1st contributor, all the Earth's systems must be kept in . To succed in this, we need to control the rate at which we use the planet's .
For the 2nd one, worldwide  must have  access to their resources and be able to find the money for all the stages of their procession. 
The 3rd contributor is based on universal   and it means that the basic needs of people are covered so that everyone feels  and .