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Observing sun spots
Use the telescope that you made in a last experiment. Set it up so that it points directly at the sun and focus it so that a clear and bright image of the sun is formed on a piece of white cardboard placed a short distance from the eyepiece lens. If sun spots are there on the surface of the sun you may be able to observe them as small dark spaces of irregular outline on the image. Caution. Do not look at the sun by the telescope, unless your eyes are protected by a dark glass filter.
Controlling Air Pollution: Now let us see, how air pollution can be controlled. i) Photochemical smog-eliminating this would require large scale changes in life style
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is pencil translucent or opaque?
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provide seminar on parthenocarpy in Vegetable crop
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Which type of ripple marks would you expect to find on the floor of a standing body of waterion..
Discuss about the life on earth We can say that all life on Earth is locked in the minerals and by weathering nutrients important to life are made available. Even life in the s
What is the significance between sensory transduction and sensory adaption?
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