At or near the surface, where winds encounter obstacles such as trees, building, topography, and slower moving layers of air, _______________ reduces the wind speed
Fill in the blank(s) with correct word
wind friction, friction, frictional drag
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How many structural isomers are shown here?
A. one B. two C. three D. four
Biomes are regions with similar ________
A) animals, plants, and climatic conditions B) rocks, soil, minerals, and water C) terrain and elevations D) soils, water systems, and animals
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)
The North American realm extends from the polar regions of northern Canada and Alaska all the way south through Mexico and the countries of Central America.
a. true b. false