Answer the following question given this paragraph: Figure 14.7 (a) Energy is required to partially overcome the attractive forces between molecules in a solid to form a liquid. That same energy must be removed for freezing to take place. (b) Molecules are separated by large distances when going from liquid to vapor, requiring significant energy to overcome molecular attraction. The same energy must be removed for condensation to take place. There is no temperature change until a phase change is complete. Q: What is required to partially overcome the attractive forces between molecules in a solid to form a liquid? Choices: - fuel - hydrogen - oxygen - energy A:
energy
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Answer the following question given this paragraph: Earth is the third planet from the Sun. It is the only planet with large amounts of liquid water, and the only planet known to support life. Earth is the only inner planet that has a large round moon. Q: What is the only known planet with large amounts of water? Choices: - saturn - jupiter - mars - earth A:
earth
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Answer the following question given this paragraph: All mammals have lungs that are the main organs for breathing. Lung capacity has evolved to support the animal's activities. During inhalation, the lungs expand with air, and oxygen diffuses across the lung's surface and enters the bloodstream. During exhalation, the lungs expel air and lung volume decreases. In the next few sections, the process of human breathing will be explained. Q: What are the main organs for breathing in a mammal? Choices: - gills - nostrils - intestines - lungs A:
lungs
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Answer the following question given this paragraph: Hearing is the ability to sense sound waves, and the ear is the organ that senses sound. Sound waves enter the auditory canal and travel to the eardrum (see Figure below ). They strike the eardrum and make it vibrate. The vibrations then travel through several other structures inside the ear and reach the cochlea. The cochlea is a coiled tube filled with liquid. The liquid moves in response to the vibrations, causing tiny hair cells lining the cochlea to bend. In response, the hair cells send nerve impulses to the auditory nerve , which carries the impulses to the brain. The brain interprets the impulses and "tells" us what we are hearing. Q: What is the organ that senses sound? Choices: - nose - eye - skin - ear A:
ear
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