Q: You are presented with the quiz "Vapor doing what forms beads of liquid?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "beads of water are formed by water vapor condensing" and "water, for example, is a liquid". So, what's the best answer to the question?

OPTIONS:
- energy barrier
- condensing
- a solute
- boiling
- unidirectional
- motion
- kinetic energy
- evaporation

A: condensing

Q: You are presented with the quiz "What causes different shapes of the moon to appear?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "the moon revolving around the Earth causes the phases of the moon" and "phases refer to the different shapes the moon appears from the earth". So, what's the best answer to the question?

OPTIONS:
- scattered light
- Physical weathering
- reflecting light
- moon revolving around Earth
- a hemisphere is tilted away from the sun
- refract or absorb.
- oxidation reaction
- reflect objectstowards the eye

A: moon revolving around Earth

Q: You are presented with the quiz "What does a porcupine do with its spines when it's threatened?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "threatening behavior by predators causes a porcupine to extend its quills" and "puffers are smooth skinned while Porcupines have the characteristic spines or quills". So, what's the best answer to the question?

OPTIONS:
- killing insects
- Shoot them
- kill them
- protect them
- Extend them
- Shed them
- Retract them
- behave

A: Extend them

Q: You are presented with the quiz "What is a unit that produces kWh?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "agenerator converts kinetic energy into electrical energy" and "electricity A kWh is a unit of electricity". So, what's the best answer to the question?

OPTIONS:
- energy
- homogenous
- engines
- kinetic energy
- rays or beams
- bamboo
- a generator
- positive

A:
a generator