$(1)$ Choose a place that is neither too hot nor too cold and does not get sunlight directly.
$(2)$ Dig a $30 \ cm$ deep pit at this place.
$(3)$ Spread $1$ or $2 \ cm$ thick layer of sand at the bottom of the pit.
$(4)$ Spread vegetable wastes including peels of fruits, green leaves and pieces of dried stalks of plants, husks or pieces of newspaper or cardboard, dung over the layer of sand.
$(5)$ Sprinkle some water to make this layer wet.
$(6)$ Do not press the layer of waste. Keep this layer loose so that it has sufficient air and moisture.
$(7)$ Put some redworms in the pit.
$(8)$ Cover the pit loosely with a gunny bag or an old sheet of cloth or a layer of grass.
$(9)$ Bury vegetable and fruit wastes, tea remains and weeds from the fields or garden, $2 — 3$ centimeters deep into the pit. It will serve as food for the redworms.
$(10)$ Once in a few days, gently mix and move the top layers of your pit.
$(11)$ Observe the contents of the pit carefully after four weeks. Paper can be ‘recycled in the following manner:
$(1)$ Huge amount of waste paper is required for the recycling of paper. Collect pieces of old newspapers, magazines, used envelopes, notebooks or any other paper. Do not use shiny, plastic coated paper.
$(2)$ Tear the paper into small pieces.
$(3)$ Put these paper bits in a tub or a bucket and pour hot water in it. Let the pieces of paper remain submerged in water for a day.
$(4)$ Make a thick paste of paper next day by pounding it.
$(5)$ Spread the wet paste on the wire mesh fixed to the frame. Pat it gently to make the thickness of layer of the paste as uniform as possible.
$(6)$ Wait till water drains off. Spread an old cloth or a sheet of newspaper on the paste to let it soak up the extra water.
$(7)$ Spread it on a sheet of newspaper carefully.
$(8)$ Remove excess water from paper layer by pressing with newspaper or blotting paper.
$(9)$ Keep the paper in sunlight to dry for two days. Keep the corners of the newspaper sheet pressed by putting some weights so that they do not curl up. Recycled paper is ready to be used.

Science Match The Following.[4 Marks Each]

Match The Following.[4 Marks Each]

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