Q: If the output of a spring can eventually form a valley, then the output of a spring can eventually form a what? Answer choices: - voltage - rain - power - dormant - valley - mountain - skyscraper - goldmine
A: valley

Q: If touch can be used for detecting the smoothness of an object, then what sense can be used to detect the smoothness of an object? Answer choices: - fibers - touch - Hearing - Smell - vision - Taste - motion - retina
A: touch

Q: If fertilization requires water, then what requires water? Answer choices: - Power plants - peachleaf willow - animal transport - engines - Most plants - mouth of rivers - an organism's body - fertilization
A: fertilization

Q: If sulfuric acid splashing can cause harm to humans, then what splashing can cause harm to humans? Answer choices: - water vapor - water - sea squirts - salt and water. - air - flooding - Pesticides - sulfuric acid
A: sulfuric acid