1.   A green transport policy Using unleaded petrol and fitting catalytic converters will dramatically reduce the levels of pollution caused by vehicle emissions.

2.   Exercise reduces stress levels.

3.   Hills points out that the government has failed in its stated aim of reducing the level of taxation.

4.   Stiffer emission standards are being introduced to reduce permissible levels.

5.   The hospital is trying to reduce noise levels to help patients sleep.

6.   The water is treated to reduce the levels of pollution in it.

7.   This was used to buy capital equipment, to finance the integration of new acquisitions and to reduce debt levels.

8.   Together with other treatments -- in a so-called drug cocktail -- they can reduce levels of the deadly virus to near zero.

9.   Various strategies have been adopted to reduce the level of expenditure.