31.   The tall mountains east of Los Angeles, which can be snow-capped in the winter months, helped to produce searing heat on Saturday.

32.   The two said that an electric current passing through the test cell produced excess heat.

33.   The voodoo lily uses the energy-producing organelles in its cells, known as mitochondria, to produce heat.

34.   Then he lit the lamp, which produces enough heat to keep the air moving up.

35.   They have traded charges over how the oxygen generators, which produce intense heat when activated, wound up in the cargo compartment.

36.   Use a hair dryer, which should produce enough heat to soften the adhesive so you can pry off the tiles with a wood chisel.

37.   When ordinary lightning strikes the ground, it produces intense heat.

38.   Physicists compare it to studying water by smashing ice cubes together in the hope that some of the collisions will produce enough heat to melt a drop or two.

39.   Concentrated tobacco smoke localised in the palatal vault area can cause irritation and produce heat.

40.   The canisters have fueled a lot of speculation because if charged they could produce intense heat and feed a fire.