Time left 1 Which gas in the atmosphere protects us from harmful ultraviolet radiations? Nitrogen Ozone Oxygen Carbon Dioxide 2 The deficiency of which of these vitamins causes Beri Beri? Vitamin C Vitamin B1 Vitamin E Vitamin K 3 With which of these metals mercury cannot be amalgamated? Zinc Iron Gold Silver 4 Which part of the body does leucoma affect? Eyes Feet Kidneys Heart 5 Which of these oils is taken as a cathartic agent? Neem oil Eucalyptus oil Almond oil Castor oil 6 Triton is the largest satellite of which planet? Venus Uranus Neptune Pluto 7 The Belgian chemist Jan Baptista van Helmont discovered which gas? Nitrogen Oxygen Hydrogen Carbon dioxide
Skip This