Ques:Q: What disease associated with smoking involves breakdown of walls of the alveoli, resulting in less gas exchange by the lungs? Choices: - leukemia - cancer - pneumonia - emphysema A:

Ans:emphysema
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Ques:Q: What event occurs between the two solstices? Choices: - Christmas - summer - Leap Year - equinox A:

Ans:equinox
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Ques:Q: What side of a mountain does the rainshadow effect occur on? Choices: - starboard - windward - due north - the leeward side A:

Ans:the leeward side
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Ques:Q: A sequence of amino acids in single polypeptide is the primary structure for what? Choices: - lipids - cells - dna - proteins A:

Ans:
proteins
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