Ques:Q: What is a common condition caused by 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? 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? Choices: - excitation - relaxation - exploitation - emigration A:

Ans:emigration
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Ques:Q: Name the most famous satellite of the earth? Choices: - demos - skylab - sputnik - the moon A:

Ans:
the moon
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