What is a cell? A cell can be defined as the building block of living organisms. It is the basic structural unit of a living organism. We can compare a…
Basic Science
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If you push or pull an object, you exert a force on it and if it is not held tightly, it will move. All forces act to cause a change…
Water that has being used by someone and which is of no use is known as Wastewater. It is of dirty colour and with lots of impurities present in it….