Question: Q: What expresses the mass of substance in terms of the volume occupied by the substance? A:
OPTIONS:
- velocity
- frequency
- diameter
- density
Answer: density

input with options: Q: Light retains its original color under water because what remains the same when light is refracted? A:
OPTIONS:
- wave length
- density
- sound
- frequency
output: frequency

Q: Q: Splitting the nucleus of an atom produces a massive amount of what type of energy? A:

OPTIONS:
- likely energy
- radioactive energy
- sure energy
- nuclear energy

A: nuclear energy

input: OPTIONS:
- mechanical energy
- used energy
- stored energy
- internal energy Now, answer this question: Q: The sum of the kinetic and potential energies of a system's atoms and molecules is called what? A:
A:
output: internal energy

Q: The flow of water through the sponge is unidirectional, driven by the beating of what? A:

OPTIONS:
- antennae
- cilia
- fin
- flagella

Answer: flagella

Q: Q: What combines with rain to form acid rain? A:

OPTIONS:
- suction and sulfur oxides
- compost and sulfur oxides
- carbon dioxide and sulfur oxides
- nitrogen and sulfur oxides

A:
nitrogen and sulfur oxides