1. ‘The more variety a landscape has, the more sustainable it is’. Explain this statement.

THIS STATEMENT IS YET NOT COMPLETELY PROVED BIT IF SEE THE HYPOTHESIS OF 

1. RIVER POPPET HYPOTHESIS

2. DAVID HYPOTHESIS ,

MORE SPECIES MEANS MORE PRODUCTIVITY AND MORE SUSTAINABILITY.

ALSO IF WE ASSUME THAT WHOLE ECOSYSTEM IS LIKE AEROPLANE AND EACH PASSANGER START TAKING A RIVET (SPECIES ) OUT OF THE PLANE THEN , STABILITY OF ECOSYSTEM IS AT  A STAKE.