Q: You are presented with the quiz "the output of a spring can eventually form a what?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "avalley is formed by a river flowing" and "and from the spring there flows a river". So, what's the best answer to the question? | OPTIONS:
- voltage
- rain
- power
- dormant
- valley
- mountain
- skyscraper
- goldmine
A: valley

Q: You are presented with the quiz "What sense can be used to detect the smoothness of an object" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "touch can be used for detecting texture" and "texture: rough, smooth". So, what's the best answer to the question? | OPTIONS:
- fibers
- touch
- Hearing
- Smell
- vision
- Taste
- motion
- retina
A: touch

Q: You are presented with the quiz "what requires water?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "fertilization occurs when sperm swim to an egg inside an archegonium" and "water is needed to transport flagellated sperm to archegonium". So, what's the best answer to the question? | OPTIONS:
- Power plants
- peachleaf willow
- animal transport
- engines
- Most plants
- mouth of rivers
- an organism's body
- fertilization
A: fertilization

Q: You are presented with the quiz "What splashing can cause harm to humans?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "chemical splashing can cause harm to humans" and "sulfuric acid is a highly corrosive chemical". So, what's the best answer to the question? | OPTIONS:
- water vapor
- water
- sea squirts
- salt and water.
- air
- flooding
- Pesticides
- sulfuric acid
A: sulfuric acid