31.   The influenza virus does travel easily through the air as a passenger on water droplets, so a mask may head off its transmission.

32.   The latter are tiny droplets of sulfur that reflect sunlight and minute particles that serve as the nuclei for cloud-forming water droplets.

33.   The presence of humid air can also produce numerous water droplets that adhere to the tiny solid particles.

34.   The phenomenon depends on the exchange of water droplets at the interface with the crystalline ice structure of snow at the molecular level, Perugini said.

35.   The standard theory is that tiny water droplets suspended in petroleum fuels explode when heated, creating turbulence that mixes fuel and air more efficiently inside combustion chambers.

36.   The virus readily travels from person to person in inhaled water droplets, including sneezes.

37.   Then the small ice particles may collide with other water droplets.

38.   They are made up of tiny liquid water droplets, even though the temperature is below freezing.

39.   Those tiny water droplets of his breath are an instant, ordinary cloud.

40.   Updrafts cause ice crystals and water droplets to collide in a storm.