PAF Academic Test Paper-7 61- What is the chemical formula for table salt? A. NaClB. NaOHC. HClD. KCl View Answer Answer : A. NaCl Description 62- Which country is famous for the Eiffel Tower? A. ItalyB. SpainC. FranceD. Germany View Answer Answer : C. France Description 63- Which is the hardest natural substance? A. GoldB. IronC. QuartzD. Diamond View Answer Answer : D. Diamond Description 64- What does ATM stand for? A. Automatic Teller Machine B. Automated Transfer MoneyC. Any Time MoneyD. Auto Transfer Machine View Answer Answer : A. Automatic Teller Machine Description 65- What is the study of living organisms called? A. BiologyB. GeologyC. ChemistryD. Physics View Answer Answer : A. Biology Description 66- Which is the smallest bone in the human body? A. FemurB. StapesC. TibiaD. Humerus View Answer Answer : B. Stapes Description 67- Which ocean is the coldest? A. Arctic OceanB. Atlantic OceanC. Pacific OceanD. Indian Ocean View Answer Answer : A. Arctic Ocean Description 68- Which planet has the shortest day? A. JupiterB. SaturnC. EarthD. Mars View Answer Answer : A. Jupiter Description 69- Which scientist is known for the law of motion? A. TeslaB. EinsteinC. GalileoD. Newton View Answer Answer : D. Newton Description 70- What is the main gas responsible for the greenhouse effect? A. OxygenB. NitrogenC. HeliumD. Carbon dioxide View Answer Answer : D. Carbon dioxide Description 71- What is the primary function of white blood cells? A. Clot bloodB. Fight infectionC. Digest foodD. Carry oxygen View Answer Answer : B. Fight infection Description 72- Which country is known as the “Land of the Thunder Dragon”? A. MongoliaB. TibetC. BhutanD. Nepal View Answer Answer : C. Bhutan Description 73- What is the capital of Pakistan? A. KarachiB. LahoreC. PeshawarD. Islamabad View Answer Answer : D. Islamabad Description 74- What is the official religion of Pakistan? A. IslamB. BuddhismC. HinduismD. Christianity View Answer Answer : A. Islam Description 75- Which planet is the hottest in the solar system? A. EarthB. MarsC. VenusD. Mercury View Answer Answer : C. Venus Description 76- What is the largest artery in the human body? A. AortaB. Femoral arteryC. Pulmonary arteryD. Carotid artery View Answer Answer : A. Aorta Description 77- Which element is necessary for combustion? A. HeliumB. NitrogenC. Carbon dioxideD. Oxygen View Answer Answer : D. Oxygen Description 78- Which is the deepest ocean trench? A. Mariana TrenchB. Tonga TrenchC. Philippine TrenchD. Java Trench View Answer Answer : A. Mariana Trench Description 79- Which organ is responsible for regulating body temperature? A. LiverB. BrainC. SkinD. Hypothalamus View Answer Answer : D. Hypothalamus Description 80- What is the chemical symbol for potassium? A. KB. PC. PtD. Ps View Answer Answer : A. K Description 1 2 3 4 5