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We can see the sky because the sunlight gets scattered by the particles present in the atmosphere. Without it, the sky would be dark and black with just the sun and the stars as bright objects in space.
(i) Ca(OH)₂ + CO₂ → CaCO₃ + H₂O (ii) Fe + CuSO₄ → FeSO₄ + Cu (iii) KClO₄⁻ → KCl + 2O₂ (iv) Cu + 2HNO₃ → ...
The principle of separation is based on the difference in physical or chemical properties of the components of a mixture. Depending on the type of components and their respective properties, different techniques are used.
Ethyl alcohol and water are completely miscible liquids, having different boiling points can be separated by the process of distillation.
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The goalkeeper draws his hands backwards after catching the ball to reduce the rate of momentum change by increasing the time. By doing this less force is exerted on his hands (force is proportional to the rate of change of ...
The fluid content inside the plasma membrane is called cytoplasm. It also contains specialised cell organelles.
Leucoplast is a colourless plastid which stores proteins, lipids and starch, while xanthophylls are yellow, red, orange pigment of green plants.