(Question)
Q: What objects are made from highly reflective metal that is applied to a curved or flat piece of glass? Read this paragraph and choose the correct option from the provided answers: Mirrors are made from highly reflective metal that is applied to a curved or flat piece of glass. Converging mirrors can be used to focus light headlights, telescopes, satellite TV receivers, and solar cookers all rely on this principle. Like lenses, mirrors can create images. Choices: - frames - vases - machines - mirrors A:
(Answer)
mirrors

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Q: Many important crops, such as corn, are planted and harvested as what? Read this paragraph and choose the correct option from the provided answers: Many important crops, such as corn, are planted and harvested as seeds. These seeds are important sources of food. For example, corn is ground into feed for chickens and cows. And corn syrup is used to sweeten beverages and candy. But most importantly, seeds are the starting point for a new plant. Choices: - trees - cuttings - berries - seeds A:
(Answer)
seeds

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Q: What is a form of mechanical energy that starts with a vibration in matter? Read this paragraph and choose the correct option from the provided answers: 6. Sound energy is a form of mechanical energy that starts with a vibration in matter. For example, the singer's voice starts with vibrations of his vocal cords, which are folds of tissue in his throat. The vibrations pass to surrounding particles of matter and then from one particle to another in waves. Sound waves can travel through air, water, and other substances, but not through empty space. Choices: - solar energy - electrical energy - industrial energy - sound energy A:
(Answer)
sound energy