A.An undesirable change in physical, chemical or biological characteristics of air, water or land that may
B.Will harmfully affect human life, directly or indirectly
C.Both (a) & (b)
D.None of these
A.An undesirable change in physical, chemical or biological characteristics of air, water or land that may
B.Will harmfully affect human life, directly or indirectly
C.Both (a) & (b)
D.None of these