4. The approximately time required to walk 1 kilometer distance for a man is a) 0.15 min b) 1.5 min . C) 15 min d) 150 min The approximate mass of a cricket ball is a) 1.6 kg b) 0.16 kg c) 0.016 kg d) 0.0016 kg 3. The turning effect of the force is called a) efficiency b) velocity ratio > o moment d) mechanical advantage Acceleration due ta gravity at polar region of earth is 9.83 m/s, and that at equatorial region of earth is at 9.88 m/s2 b) 9.98 m/s? C) 9.83 m/s? d) 9.78 m/s? The highest recorded air temperature on earth is 56.7 °C. Its value in Fahrenheit scale is a) 70.06 F b) 134.1 °F c) 63.5°F 6. Heat energy comes from sun to earth by a) conduction b) convection radiation 7. The minimum volume of water is at 5. d) 127.8°F d) all a) 0°C b) 100°C d) -4 °C & 4°C forme virtual image when an object is placed​