There are times when we could not answer questions about maths, reasoning, but if our general knowledge and computer knowledge are good, we can score the number of maths, reasoning at that time. Water contains a bubble of air- concave lens The reason for looking picturesque before sunrise- refraction of light The reason for becoming rainbow- refraction What will it look like if we see the sky from the moon- black Which organ separate urea from the body- kidney The colour of the human skin is formed – due to menaline Raw fruits are used for cooking- acetylene Why is the bite of honeybee, ant, scorpion causes irritation and itching- due to formic acid Produces vitamin D for the body-our skin Which vitamin is found in sunlight- D, K Artificial rainfall occurs- due to silver iodide Salk vaccine is applied for which disease- polio What causes water to be spherical - due to friction Which metal is found in liquid form- mercury Which part of the body is affected by jaundice- liver Also Read- General knowledge questions that will be help you for coming exams Answer these biology-related questions Traditional Halwa Ceremony for General Budget to be held today, these luminaries will be included