Environmental Sustainability” refers to the ______________ of vital human ______________ support systems. fill in the blank
"Environmental Sustainability" refers to the long-term maintenance of vital human environmental support systems.
To fill in the blank, we need to understand what "vital human environmental support systems" means. These systems consist of the natural resources and ecosystems that directly or indirectly support human life. Some examples include clean air, clean water, fertile soil for agriculture, and healthy ecosystems that provide food, energy, and raw materials.
Therefore, the blank can be filled with "long-term maintenance" since environmental sustainability is about ensuring that these vital support systems are conserved and managed in a way that allows them to continue supporting human life for the present and future generations.