During sublimation
A) water molecules change their basic structure.
B) water molecules condense to form a liquid.
C) additional oxygen is added to water.
D) water changes from a solid directly to a gaseous form.
Question 2
Compact florescent and LED bulbs are designed to
A) produce more light than normal bulbs.
B) use less electricity than incandescent bulbs to produce light.
C) be powered by heat from CHP technology.
D) turn off automatically when no people are in a room.
