21.   They argue it could be used for military purposes and emit harmful radiation.

22.   They argue that it can be used for military purposes and emit harmful radiation.

23.   They argue that it can be used for military purposes and may emit harmful radiation.

24.   They fear that the station can be used for military purposes and emit harmful radiation.

25.   CFCs have been accused of depleting the ozone level which protects the earth from harmful solar radiation.

26.   The ozone protects the Earth from harmful ultraviolet radiation, and appears to be thinnest over the southern hemisphere.

27.   The ozone layer protects the earth from harmful radiation from the sun.