81. The American clipper ship era was of duration short, extending from about 1845 to 1859.

82. Crystals of pure quartz, usually called rock crystal, are coarseness, colorless, and transparent.

83. Of 120 minerals known to have been used as gemstones, only about 25 are in common use in today jewelry.

84. One of the thirteen original state of the United States, North Carolina lies on the Atlantic coast midway between New York and Florida.

85. The various peoples who developed North America have made it a world leader economic .

86. The Milky Way is a flat spiral galaxy who contains an estimated 100 billion stars, including the Sun.

87. The piano as it is known today represents a long series of experiments extend back to the year 1711, or perhaps even earlier.

88. Climate is the primarily force that distinguishes one biome, or major terrestrial region, from another.

89. Prehistoric villagers tended to work harder, suffer from more diseases, and eat the poorer diet than nomadic hunters did.

90. A major Canadian city, Montreal is second only to Paris as the most largest French-speaking city in the world.

91. Archaeological and geological excavations indicate which a primitive type of corn was used as food in North America at least 7,000 years ago.

92. The major component of the sedimentary rock called shale is clay, an earthy, fine-grained material consisting primary of a particular group of crystalline minerals.

93. Copper was the first metal used by humans and is second only to iron into its utility through the ages.

94. The mineral chalcopyrite usually is found in compact masses or in mixtures with various other mineral as opaque, brass-yellow, tetragonal crystals.

95. Because the study of chemistry encompasses the entire material universe, it is central to the understand of other sciences.

96. Cyclamates were introduced in the early 1950’s as alternative sweeteners for use by individuals who needed reducing their sugar intake for medical reasons.

97. The pericardium, a double-layered sac, it surrounds the heart and the large vessels entering and leaving the heart.

98. The Hopi, descendants of the prehistoric Anasazi people, are a Pueblo people who of the southwestern United States.

99. A storyteller exercises close control over the storytelling experience by the choice of words, their arrangement, and their effective.

100. Iron is one of the basic element of which the world is made.

101. The president and vice president are the only public officials in the United States choose in a nationwide election, which takes place every four years.

102. Derived from the concept of natural law is the theoretical that individuals possess inalienable natural rights, as stated in the United States Declaration of Independence.

103. The United States national debt was relatively small until the Second World War, during when it grew from $43 billion to $259 billion in just five years.

104. Brass is stronger than either the copper and zinc of which it is composed.

105. In the traditional sense, a molecule is smallest particle of a chemical substance capable of independent existence while retaining all of its chemical properties.

106. The able of a clarinet to blend and contrast with other instruments makes it popular for chamber music and as a solo instrument.

107. Phenotypic traits, such as size or skin color, result to the interaction between an organism’s genetic makeup and the environment in which the organism develops.

108. To classical scholar, rhetoric was important in three spheres of human interaction: in law courts, in legislative assemblies, and in public forums.

109. The stark, boxy forms of European modernist architectural dominated United States cityscapes in the building boom following the Second World War.

110. Subjects of Cecilia Beaux’s paintings included prominent figures in government, the arts, and financial, but her strongest works are portraits of family members and friends.

111. By 1920 the area of the United States under cultivation had more than doubled in just 50 years, and the national population that surpassed 100 million.

112. Some areas of the deep sea are vulnerable frequent natural disturbances taking the form of intense currents, mud slumps, low oxygen, and upwellings.

113. In the United States, the first roads were paved in colonial times, first with logs, latest with cobblestones or brick, depending on the region.

114. In physics, sound is considered to be the waves of vibratory motion, nether or not they are heard by the human ear.

115. Over one thousand mineral are known, most of which are characterized by definite chemical composition, crystalline structure, and physical properties.

116. The layers of an elephant’s tusk are deposited from the pulp, yet that the innermost layer is the newest.

117. Butane is found into both oil and natural gas.

118. When expelled from the nucleus of an atom, a neutron is unstable and decay to form a proton and an electron.

119. Muscles who are given proper exercise react to stimuli quickly and powerfully and are said to be “in tone.”

120. Automobile insurance compensates only not for fire and theft but also for damage caused by a collision and for injury to victims of an accident.

121. Importance as foods, carbohydrates supply energy and are used to make fats.

122. Because banana plants yield only one bunch of fruit, each plant is cut down after produces bananas.

123. Flash photography is widely used for taking pictures when the natural light is insufficient, such as outdoors at night and indoors most of time.

124. The specific purpose served by a storage dam will influence its design and determined the amount of reservoir storage needed.

125. In 1889, Jane Addams founded Hull House, an institution in Chicago where she and other socially reformers lived and worked to improve urban living conditions.

126. Early United States revolutionaries shaped an orderly processes by which frontier territories would move from colonial status to statehood.

127. In music, cacophony is discordant sounds, false harmony, or noisily and inharmonious combinations of sounds.

128. Small to medium-sized marsh birds similar in body shape by cranes, rails are found throughout the world, except in the polar regions.

129. The completion of the first transcontinental railroad in 1869 gave California its first direct rail connection with a rest of the United States.

130. Whilhelmina Cole Holladay she was the founder and first president of the National Museum of Women in the Arts in Washington, DC.

131. As sweeteners, there is very small difference between honey and sucrose, although the former does contain minimal quantities of vitamins, minerals, and amino acids.

132. Cultivated for salad since ancient times, lettuce is harvesting before its flower stem shoots up to bear its small yellow flowers.

133. Phonological structure encodes speak sounds as a sequence of vocal tract configurations — successive positions of the larynx, jaw, lips, tongue, and velum.

. The steamship contributed of the development of fast news-gathering during the nineteenth century

. The 1880’s saw not only the creation of the curtain wall and wind-braced iron frame also the architectural mastery of these structural devices

136. A century ago, women made quilts only not to keep their families warm but also to express their artistic abilities.

137. The building knew as the Capitol is situated on Capitol Hill in Washington, D.C., and it houses the legislative branch of the United States government

138. A person or business with more debts than assets for meeting debt payment may to declare legal bankruptcy.

139. The first stethoscope—the kind of instrument what has come to symbolize medicine around the world —was constructed in 1816.

140. It is said that no potential frontier has such fired the imagination or challenged the ingenuity of humankind as has space.

141. The Congress of the United States can initiate legislation and significantly amend or rejection Presidential legislative proposals.

142. Through his paintings, Edward Hopper depicted the isolation, lonely, and lack of variety of the daily life of small-town America.

143. The chief editorial concern in magazine publishing is presenting a mix of news, information, and entertain, all targeted at the audience the magazine seeks to reach.