31.  A man who receives an electric shock does not ask himself whether he believes in the form of energy known as electricity.

32.  A more qualified response might be, yes, in various ways which collectively have shaped musical life as we know it.

33.  A number of clades are still too poorly known to be included.

34.  A physical examination will let your doctor know about your current state of health.

35.  A precise statement of this idea is known as the second law of thermodynamics.

36.  A presenter, after all, knows that a viewer has the visual evidence to check on what is being said.

37.  A quick ride up a short but somewhat steep dirt road takes you to Mulholland Drive, known here as dirt Mulholland.

38.  A scholar wants to know which factors are crucial for explaining high public expenditure.

39.  A second and rather more surprising method of managed information-flows is know how trading.