paryaavaraneeya avanayan

paryaavaraneeya avanayan (angreji: Environmental degradation) ke antargat paryaavaran mein hone vaale ve saare parivaartan aate hain jo avaanchhaneeya hain^[1] aur kisi kshetr vishesh mein ya poori pruthvi par jeevan aur sandhaaraneeyata ko khatra utpann karte hain. at: iske antargat pradooshan, jalavaayu parivartan, jaiv vividhta ka ksharan aur anya praakrutik aapadaaen ityaadi shaamil ki jaati hain.

1. ↑ Johnson, D.L., S.H. Ambrose, T.J. Bassett, M.L. Bowen, D.E. Crummey, J.S. Isaacson, D.N. Johnson, P. Lamb, M. Saul, and A.E. Winter-Nelson. 1997. Meanings of environmental terms. Journal of Environmental Quality 26: 581–589.

yeh lekh ek aadhaar hai. aap ise badhaakar vikipeediya ki sahaayata kar sakte hain. the va b