When water freezes, it can expand up to what percentage?

a. 9%
b. 29%
c. 59%
d. 79%
e. 99%


A

Environmental & Atmospheric Sciences

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A student discussing bond polarity and molecular polarity in alcohols made the following statements: (i) In methanol, CH3OH the H-O bond is more polar than the C-O bond. (ii) Ethanol, CH3CH2OH, the alcohol of alcoholic beverages, has at least one polar bond, a net dipole, and is a polar molecule. Which of the above statements is(are) true?

A) only statement (i) B) only statement (ii) C) both statement (i) and statement (ii) D) neither statement (i) nor statement (ii)

Environmental & Atmospheric Sciences

Why is clay poor soil?

A. Clay particles pack so tightly there is little air in clay soil. B. It does not contain organic matter. C. It doesn't allow sufficient drainage. D. all of the above

Environmental & Atmospheric Sciences

Carbon-14 dating is based on the ratio of the parent isotope ____________________ to the daughter

isotope ____________________. Fill in the blank(s) with the appropriate word(s).

Environmental & Atmospheric Sciences

In 2010, approximately how many people were in the world?

A) 3.5 billion B) 4.5 billion C) 5.5 billion D) 6.5 billion E) 7.5 billion

Environmental & Atmospheric Sciences