How many basic principles had been laid out on sustainability to protect our planet

Three basic scientific principles of sustainability are:

1- Dependence on Solar Energy

2- Importance of Biodiversity

3- Chemical cycles and nutrients

Explanation:

Sustainability is necessary to maintain the environment and protect life on the planet. Without solar energy, there will be no life on this earth. The right usage of solar energy can help us to increase our resources. Without biodiversity, there will be no food chains. Plants and other organisms produce chemicals and nutrients which are necessary for themselves and other organisms as well.