amount of biogenetic nutrients present in abiotic environment per unit area at any time is called

1. standing state
2. standing crop
3. NPP
4. nutrients immobalization

STANDING STATE:- Amount of nutrients like carbon, Nitrogen, Phosphorus, calcium etc. present in the soil at any given time.
STANDING CROP:- Mass of living material present at a trophic level at a particular time.
So the correct option is 1.