11.   Is this sequence the natural process by which humans approach an infant?

12.   It is not a deliberate, self-conscious activity, but a natural process that takes place unconsciously.

13.   Learning a language should be thought of as a natural process.

14.   Manufacturers will perceive natural biological processes as competitive and inspirational, and this will drive manufactured processes toward biological-type solutions.

15.   Many factors can contribute to thinning hair, including stress, diet, illness and even pregnancy as well as the natural ageing process.

16.   Second, the discrimination which emanates from ageism can appear to result from the natural process of biological ageing rather than social creation.

17.   She saw his physical symptoms as evidence that he was trying unsuccessfully to apply the brakes on a natural evolutionary process.

18.   Sometimes the natural processes of erosion will etch a perfect specimen.

19.   Such abstraction is essential to human understanding, and it has opened up comprehension of natural processes in an amazing way.