31.   They place man with his dignity and his rights, concern for the survival of mankind and the preservation of the natural environment at the centre of their policy.

32.   Ethology is the study of species with particular emphasis on their interactions with the surrounding natural environment.

33.   Open Country Free Range Chicken in their natural environment.

34.   The conservation of birds wild and free, and the natural environments in which they live is our concern.

35.   The development should be capable of being assimilated into the natural environment.

36.   Monoamine oxidase is involved in the endogenous metabolism of several neurotransmitters and has an important position in the metabolism of several amines derived from our natural environment.

37.   Poland and Lithuania have signed an agreement aimed at protecting their natural environment.

38.   The agreement covers the conservation of border water resources, establishes monitoring procedures, and addresses legal and economic aspects linked to the protection of the natural environment.

39.   A third priority is to stop irreversible damage to the natural environment.

40.   They want to regain the natural environments.