Ques:Q: What is a common condition caused by stomach acid? Read this paragraph and choose the correct option from the provided answers: Have you ever experienced heartburn? Heartburn is actually a condition caused by stomach acid, rather something in your heart. The stomach produces HCl, which is a necessary component of digestion. However, excessive amounts of stomach acid can cause a great deal of discomfort. Various factors can cause the overproduction of acid, mostly related to the types (and amounts) of food and beverages that are being consumed. Caffeine and other oils in coffee (even decaf) will increase HCl production in the stomach. Smoking cigarettes and drinking alcohol also increase the formation of stomach acid. Choices: - arthritis - headache - sunburn - heartburn A:

Ans:heartburn
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Ques:Q: Materials, such as iron, that exhibit strong magnetic effects are labeled what? Read this paragraph and choose the correct option from the provided answers: Magnetic poles always occur in pairs of north and southit is not possible to isolate north and south poles. All magnetism is created by electric current. Ferromagnetic materials, such as iron, are those that exhibit strong magnetic effects. The atoms in ferromagnetic materials act like small magnets (due to currents within the atoms) and can be aligned, usually in millimeter-sized regions called domains. Domains can grow and align on a larger scale, producing permanent magnets. Such a material is magnetized, or induced to be magnetic. Above a material's Curie temperature, thermal agitation destroys the alignment of atoms, and ferromagnetism disappears. Electromagnets employ electric currents to make magnetic fields, often aided by induced fields in ferromagnetic materials. Choices: - paramagnetic - superconducting - ultramagnetic - ferromagnetic A:

Ans:ferromagnetic
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Ques:Q: Population growth is determined by rates of birth, death, immigration, and what else? Read this paragraph and choose the correct option from the provided answers: Population growth is determined by rates of birth, death, immigration, and emigration. Choices: - excitation - relaxation - exploitation - emigration A:

Ans:emigration
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Ques:Q: Name the most famous satellite of the earth? Read this paragraph and choose the correct option from the provided answers: Choices: - demos - skylab - sputnik - the moon A:

Ans:
the moon
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