101. Dinosaurs and many other species were extinct about 66 million years ago.
102. ATP (Adenosine Triphosphate) is a currency of body cells.
103. James Watt invented the steamboat.
104. Vitamin “A” is also known as retinol.
105. Charles’ Law states that the volume of a given amount of gas held at constant pressure is directly proportional to the Kelvin temperature.
106. A rhinoscope (or nasoscope) is a thin, tube-like instrument used to examine the inside of the nose.
107. The heaviest naturally-occurring element is uranium.
108. A colloidal system in which a liquid is dispersed into a liquid is called an emulsion.
109. Ultrasonic waves are used in sonography.
110. When sound waves travel from air to water, frequency remains unchanged.
111. Nylon is commonly called a polyamide.
112. Magnetism is a force.
113. The human heart is myogenic.
114. In the context of the environment, the term “dirty dozen” refers to 12 persistent organic pollutants.
115. Elements which have the same number of protons but different number of neutrons are called isotopes.
116. The third most common gas found in the air we breathe is carbon dioxide.
117. Anthracite has the maximum carbon content among the types of coal.
118. Newton’s Third Law of Motion states that for every action, there is an equal and opposite reaction.
119. Blood does not coagulate inside the body due to the presence of heparin.
120. 1 yard = 3 feet.

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