What is a type of real-word writing that presents material that is necessary or valuable?

What determines whether a 100-w light bulb costs more to use than a 1200-w hair dryer costs to sue? What bundles of nerve fibers carry visual information from the eye? What is the medical term meaning Disease of the mouth due to fungus? What is a hypothesis for a flame test? What are symptoms of lead poisoning? What city is located at the highest elevation in the world? What is made from rocks in your house? What happened to the matter at the center of the nebula? What do plants use magnesium ions to make? What is the speed of sound in air at different temperature? What type of galaxy is the? What is earth powered by? How long to items take to decay in the environment? What will happen to bread molds after a weeks? What are some tips for watermelon coloring to make it look more realistic and vibrant? Can algae become extinct? Generator size estimate for amps for a hot water system furnace with 1.0 amp water pump burner controls 8.5 amps ignitor valve 1.0 amp burner motor 10 FLA and 60 LRA furnace breaker on 15 amp circuit? How many liquid ounces are in four cups? A(n) in a molecule influences the way that a molecule reacts? What is water solube mean?