Which phenomenon is occurring when a person looks at a straight spoon in a glass
of water and the spoon appears bent?
a) reflection
b) prismatic reflectance
c) refraction
d) amplitude modification

Margaret wants to make an orange flavored drink by stirring powdered drink mix into a glass of water. she doesn't like drinks that have small clumps of powdered solid in them, so she wants the drink to be a perfect solution. what factors should margaret not consider when deciding how much powder to add to her glass of water?

The name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion

How have the greenhouse gasses increased from the year 2000 to 2018