41. Lack of ——– causes diabetes. A. Sugar B. Insulin C. Calcium D. Vitamins ✅ The correct answer is option Insulin.
42. A British governments deceleration in November 1917 announcing the establishments of a jawish national horne in Palestine , this treaty is called A. Geneva Accord B. Washington Declaration C. Balfour Declaration D. Pact of Paris ✅ The correct answer is option Balfour Declaration.
43. The shortest bone in the human body is: A. Vertebrae B. Stapes C. Phalages D. Metacarpals ✅ The correct answer is option Stapes.
44. Who invented the paper? A. Chinese B. French C. Egyptians D. Spanish ✅ The correct answer is option Chinese.
45. Atacama Desert lies in: A. Chile B. Uruguay C. Mexico D. Brazil ✅ The correct answer is option Chile.
46. Deficiency of iron in human diet causes: A. Goiter B. Scurvy C. Anemia D. Rickets ✅ The correct answer is option Anemia.
47. Acquired Immuno-Deficiency Syndrome(AIDS) is caused by: A. bacterium B. Protozoan C. Fungus D. Virus ✅ The correct answer is option Virus.
48. The branch of science which deals with structure of animals and plants: A. Anatomy B. Oncology C. Ecology D. None of these ✅ The correct answer is option Anatomy.
49. World’s deepest river with measured depths in excess of 220 m: A. Congo River B. Indus River C. Nile River D. Yellow River ✅ The correct answer is option Congo River.
50. What is the name of the Bangladeshi Parliaments? A. Tsongdu B. Shergo C. Jatiyo Sangshad D. Majlis ✅ The correct answer is option Jatiyo Sangshad.