LIGHT
NOTES What makes things visible? We can see the world through our eyes or our sense of sight. However, we cannot see anything without the l...
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NOTES What makes things visible? We can see the world through our eyes or our sense of sight. However, we cannot see anything without the l...
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NOTES- Cells Cells are the fundamental structural units of living organisms and the basic units of life. Robert Hooke discovered the cell ...
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NOTES Pollution Environmental pollution refers to undesirable changes in the surroundings that have adverse effects on plants, animals and ...
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