【正文】
ry is an abstract, symbolic representation of what is conceived to be reality.14. Long before children are able to speak or understand a language, they municate through facial expressions and by making noises.15. Thanks to modern irrigation, crops now grow abundantly in areas where once nothing but cacti and sagebrush could live.16. The development of mechanical timepieces spurred the search for more accurate sundials with which to regulate them.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.18. Fungi are important in the process of decay, which returns ingredients to the soil, enhances soil fertility, and deposes animal debris.19. When it is struck, a tuning fork produces an almost pure tone, retaining its pitch over a long period of time.20. Although pecans are most plentiful in the southeastern part of the United States, they are found as far north as Ohio and Illinois.21. Eliminating problems by transferring the blame to others is often called scapegoating.22. The chief foods eaten in any country depend largely on what grows best in its climate and soil.23. Over a very large number of trials, the probability of an event’s occurring is equal to the probability