1.   As an infection carried on the air and in milk, diphtheria was not much affected by changes in living standards.

2.   But the change will affect companies, too.

3.   Change has also affected the way we organise and set up exhibitions.

4.   Indirect transmission mechanisms An indirect transmission mechanism is where a change in money supply first affects some intermediate variable.

5.   Scientists are investigating the ways in which climate changes affect the ozone layer.

6.   Scientists are investigating the ways in which climate changes affect the ozone.

7.   The changes will affect local authorities across the board.