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Author Question: The annual freezing and thawing of ice is a major factor on the regulation of temperatures on Earth. ... (Read 89 times)

Mimi

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on: Aug 22, 2018
The annual freezing and thawing of ice is a major factor on the regulation of temperatures on Earth. Indicate whether the statement is true or false.

Question 2

The polarity of water makes it able to dissolve many compounds. Indicate whether the statement is true or false.


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irishcancer18

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Reply #1 on: Aug 22, 2018
Answer to Question 1

ANS: T
Despite the high heat capacity of solid ice, it is still approximately half of that of liquid water. The
melting and freezing of water releases and uses heat energy. This cyclical pattern in the poles is an
effective means of moderating temperatures on Earth. Information can be found in the section Surface
Water Moderates Global Temperature.



Answer to Question 2

ANS: T
Water is a polar molecule. Water's geometric formation causes the atoms of hydrogen to have a
partially positive charge and the oxygen to be partially negative. This allows the molecules to be
attracted to other polar molecules. If a substance is held together by the attraction of opposite forces,
water is able to pull it apart. Information can be found in the section The Water Molecule Is Held
Together by Chemical Bonds



Mimi

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Reply #2 on: Aug 22, 2018
Thank you!


irishcancer18

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Reply #3 on: Aug 22, 2018
Always glad to help...


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