1. Typical of the grassland dwellers of the continent is the American antelope, or pronghorn.% U% K( R4 E* R. C# Q
2. Of the millions who saw Haley's comet in 1986, how many people will live long enough to see it return in the twenty-first century.
1 l7 p! ]6 `8 K 3. Anthropologists have discovered that fear, happiness, sadness, and surprise are universally reflected in facial expressions.
; g3 M J( J) v% Z; M 4. Because of its irritating effect on humans, the use of phenol as a general antiseptic has been largely discontinued.4 P8 K; I( v" C, h$ D, X
5. In group to remain in existence, a profit-making organization must, in the long run, produce something consumers consider useful or desirable.* X8 y- B/ v( R5 l
6. The greater the population there is in a locality, the greater the need there is for water, transportation, and disposal of refuse.
) m4 B- g, \: z" R! k. m 7. It is more difficult to write simply, directly, and effectively than to employ flowery but vague expressions that only obscure one's meaning.
( `9 w9 M- B/ I 8. With modern offices becoming more mechanized, designers are attempting to personalize them with warmer, less severe interiors.1 `3 B1 J+ e3 f$ } M
9. The difference between libel and slander is that libel is printed while slander is spoken.$ X/ K3 e" w7 j
10. The knee is the joints where the thigh bone meets the large bone of the lower leg.& r+ Y- F. W0 g1 Z) L6 M. y
11. Acids are chemical compounds that, in water solution, have a sharp taste, a corrosive action on metals, and the ability to turn certain blue vegetable dyes red., s y7 L& T6 o( `7 R* I8 H
12. Billie Holiday's reputation as a great jazz-blues singer rests on her ability to give emotional depth to her songs.
4 t( w2 w( l2 A5 h" u b 13. Essentially, a theory is an abstract, symbolic representation of what is conceived to be reality.
( ?' R7 d& h9 [4 J# M 14. Long before children are able to speak or understand a language, they communicate through facial expressions and by making noises.
, B) A+ k2 q* p: N8 m9 J' o 15. Thanks to modern irrigation, crops now grow abundantly in areas where once nothing but cacti and sagebrush could live.' m; _! `, q- g8 b( M3 R" b
16. The development of mechanical timepieces spurred the search for more accurate sundials with which to regulate them.
" R3 O/ ^/ n: v+ J4 x. P7 x$ L& E& n5 ~% x 17. Anthropology is a science in that anthropologists use a rigorous set of methods and techniques to document observations that can be checked by others.
& S* v4 y2 @# F- j+ J' D 18. Fungi are important in the process of decay, which returns ingredients to the soil, enhances soil fertility, and decomposes animal debris./ g6 g c o" j0 o
19. When it is struck, a tuning fork produces an almost pure tone, retaining its pitch over a long period of time.
% Q' o. b5 U) ] 20. Although pecans are most plentiful in the southeastern part of the United States, they are found as far north as Ohio and Illinois. |