Answer the following question given this paragraph: Minerals that are not pure elements are made of chemical compounds. For example, the mineral quartz is made of the compound silicon dioxide, or SiO 2 . This compound has one atom of the element silicon for every two atoms of the element oxygen. Q: Minerals that are not pure elements are made of what? Choices: - isotopes - noble gases - metalloids - chemical compounds A:
chemical compounds
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Answer the following question given this paragraph: 7. People with red hair usually have very light skin. What might be a genetic explanation for this observation?. Q: People with red hair usually have what type of skin? Choices: - dark - oily - dry - light A:
light
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Answer the following question given this paragraph: The value of , the ideal gas constant, depends on the units chosen for pressure, temperature, and volume in the ideal gas equation. It is necessary to use Kelvin for the temperature and it is conventional to use the SI unit of liters for the volume. However, pressure is commonly measured in one of three units: kPa, atm, or mmHg. Therefore, can have three different values. Q: What are kpa, atm, and mmhg measurement units for? Choices: - temperature - weight - velocity - pressure A:
pressure
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Answer the following question given this paragraph: Q: Cold sores, influenza, and the common cold are all? Choices: - digestive infections - trend infections - anal infections - viral infections A:
viral infections
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