1.   Different individuals Marked with the white smoke.

2.   Thick white smoke blotted out the sun.

3.   When I opened the door, acrid white smoke came billowing out.

4.   The chimney puffed white smoke into the sky.

5.   A particularly effective dense white smoke is produced by exposing titanium tetrachloride to the atmosphere, but this is both toxic and corrosive.

6.   As it vapourises it releases white smoke -- beryllium oxide.

7.   Then the flames vanished and a great cloud of white smoke shot up through the green....

8.   As soon as you see white smoke, add ginger and hard stems of garlic chives.

9.   At that point, the official wait for a puff of white smoke began.

10.   Beyond the sea and the swimmers is a bank of heavy-duty machines, many emitting plumes of white smoke.