Which one of the following is a good conductor of electricity? Copper Glass Plastic How many oxygen atoms are there in one molecule of carbon dioxide? Two Three Half Which of the following is called the powerhouse of the cell? Ribosome Lysosome Mitochondria When a light ray travels from one medium to another passing through the surface, the direction and speed of the light ray changes. This phenomenon is ___________. Reflection Diffusion Refraction Which of the following options is NOT a component of blood? Platelets Myosin Red blood cells What is the chemical name of baking soda? Calcium bicarbonate Sodium bicarbonate Calcium chloride Concave mirrors are used in _________. Make-up mirrors Telescopes Passenger-side rear view mirrors The chemical symbol of the metal "tin" is ________. Sb Sn Si How many bones are there in an adult human body? 126 206 52 Which of the following is a wireless medium to transmit data from sender to receiver ? Fiber Optic cable Twisted Pair Wire Microwaves You got out of 10 correct. The correct answers are
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