21.   This is quite different from the lengthy exposure to much lower levels which people receive from the nuclear industry.

22.   When he provided nests on two tiers, hens showed a strong preference for the lower level.

23.   The path to becoming a financial director is very difficult, and a lot of people get stuck at a lower level.

24.   There is a lower level of initial margin on straddle positions.

25.   If the additional research results in a new product launch at the end of three years the sales forecasts are for lower sales levels.

26.   This may link with the lower average level of technical qualification among the UK chief executive officers.

27.   In that study changes in risk at lower levels seemed to be unrelated to recall performance while at higher levels there was a positive correlation between the two.

28.   The aisle is roofed at a lower level than the nave and the triforia have the function of masking the lean-to roofs which cover these vaults.