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General Knowledge Practice Tests Chapter 1-15 eBook covers problem solving exam tests from GK textbook and practical eBook chapter wise as: Chapter 1: Biosphere MCQ Chapter 2: Circulatory System MCQ Chapter 3: Earth Structure MCQ Chapter 4: Earth's Atmosphere MCQ Chapter 5: Environmental Science MCQ Chapter 6: Famous Scientists MCQ Chapter 7: Human Skeleton MCQ Chapter 8: International Organizations MCQ Chapter 9: Life on Earth MCQ Chapter 10: Musculoskeletal System MCQ Chapter 11: Oceans of World MCQ Chapter 12: Seven Continents MCQ Chapter 13: Space and Solar System MCQ Chapter 14: Technology Inventions MCQ Chapter 15: Types of Rocks MCQ Practice Biosphere MCQ PDF, book chapter 1 test to solve MCQ questions: Cryosphere, ice cap, introduction to biosphere, pedosphere, and world current affairs. 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Practice Famous Scientists MCQ PDF, book chapter 6 test to solve MCQ questions: Albert Einstein, alexander graham bell, Aristotle, Avicenna, Charles Darwin, Ernest Rutherford, Ernst August Fiedrich Ruska, Erwin Schrodinger, Francis Crick, Fritz Haber, Galileo, General Knowledge, Gerd Binning, Hermann Emil Fischer, Jacobus Henricus Vant Hoff, Johannes Hans Danniel Jensen, Louis Pasteur, Maria Goeppert Mayer, Marie Curie, Max Born, Max Planck, Michael Faraday, Muhammad Abdus Salam, Niels Bohr, Nikola Tesla, Norman Haworth, Otto Hahn, Robert Woodrow Wilson, Sir Alexander Fleming, Sir Frederick Grant Banting, Sir Isaac Newton, Steven Weinberg, Thomas Edison, Willard Boyle, and William Ramsay. Practice Human Skeleton MCQ PDF, book chapter 7 test to solve MCQ questions: Blood cell production, bones disorders, human skeleton division, human skeleton functions, and introduction to human skeleton. Practice International Organizations MCQ PDF, book chapter 8 test to solve MCQ questions: Economic cooperation organization, European union, federal bureau of investigation, food and agriculture organization, IBRD, ICSID, IDA, international atomic energy agency, international civil aviation organization, international court of justice, international criminal court, international energy agency, international finance corporation, international fund for agricultural development, international hydrographic organization, international labor organization, international maritime organization, international monetary fund, international telecommunication union, international tribunal for law of sea, Interpol, MIGA, national aeronautics and space administration NASA, NATO cold war, north Atlantic treaty organization, OPEC, permanent court of arbitration, south Asian association for regional cooperation, the united nations, UNESCO, UNICEF, united nations conference on trade and development, united nations development programme, united nations environment programme, united nations high commissioner for refugees, united nations industrial development organization, united nations security council, universal postal union, who, world bank, world current affairs, world food programme, world health organization, world intellectual property organization, world tourism organization, and world wildlife fund. 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Practice Types of Rocks MCQ PDF, book chapter 15 test to solve MCQ questions: Igneous rocks, metamorphic rocks, sedimentary rocks, and world history.