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G K ( General Knowledge ) SCIENCE

G K ( General Knowledge ) SCIENCE What does your heart pump? Blood Which is the nearest star? The sun Which is heavier, gold or silver? Gold How many sides does a triangle have? Three What is H2 0? Water How many legs does a butterfly have? Six Triton is a moon of which planet? Neptune For what process do plants need sunlight, CO2 and water? Photosynthesis Which physicist wrote a book called 'A Brief History of Time'? Stephen Hawking Which chemical element is represented by the symbol Zn? Zinc In which organ of the body is the cerebrum found? the brain What do we call the study of birds? Ornithology Who discovered the electron? Sir J J Thomson Which is the longest bone in the human body? Thigh born At which temperature do both the Centigrade and Fahrenheit show the same reading? (-) 40c equals (-)40 F Who invented the bifocal lens? Benjamin Franklin Why we do not feel pains to cut our nails? Nails are not connected with blood vessels.