What does sustain from?

Prolong; lengthen or extend in duration or space; "We sustained the diplomatic negotiations as long as possible"; "prolong the treatment of the ..." In the music world it's known as the duration a...

By thinking that it was a bad dream, make it a point that at any cost you don't meet that person again in your life. Consider that betrayal as blessing is disguise and look forward for better...

Build interesting attractions.

definitely oxygen , water and hope.

By making the government of your country or State endorse more areas for protected area management.