The Science Quest

80. The process, by which an organism produces offspring known as…….?
    Ans: “Reproduction”..
81. What is, the unit of measurement ,for (volume),?
    Answer: “Liter (L) or Cubic meter (m^3)”..
82. What is, the chemical formula ,for (hydrogen sulphide),?
    Answer: “H2S”..
83. What is, the main function of, the excretory system, in the human body?
    Answer: “To remove waste products from the body”..
84. What is, the chemical symbol for, (potassium nitrate),?
    Answer: “KNO3”..

85.The process ,by which an organism, responds to stimuli, in its environment known as…….?
Answer: “Sensitivity”..

86. What is ,the unit of ,measurement, for (speed),?
    Answer: “Meters per second (m/s) or Kilometre’s per hour (km/h)”..
87. What is, the chemical formula, for (baking soda),?
    Answer: “NaHCO3”..
88. What is, the main function of, the endocrine system, in the human body?
    Answer: “To regulate hormones and metabolism”..
89. What is, the chemical symbol, for (copper),?
    Answer: “Cu”..
90. The process, by which an organism obtains, and uses energy known as……?
    Answer: “Metabolism”..
91. What is, the unit of measurement, for (power),?
    Answer: “Watt (W)”..
92. What is ,the main function of the immune system, in the human body?
    Answer: “To defend against pathogens and foreign substances”..
93. What is, the chemical symbol, for (sulphur),?
    Answer: “S”..
94. The process, by which an organism adapts ,to its environment over time known as……?
    Answer: “Evolution”..
95. What is, the unit of measurement, for (electric potential),?
    Answer: “Volt (V)”..
96. What is, the chemical formula, for (citric acid),?

Answer: “C6H8O7”..

98. What is ,the main function of, the muscular system, in the human body?
    Answer: “To produce movement and provide support”..
99. What is, the chemical symbol ,for (nitrogen dioxide),?
    Answer: “NO2”..
100. The study ,of matter ,and energy is known as…..?
     Answer: “Physics”..