Define the term catalysts
Define the term catalysts?
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Catalysts are substances which decrease the activation energy of a chemical reaction, facilitating it or forming it energetically viable. The catalyst raises the speed of chemical reaction.
Give a brief description of nerves?
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Departmental by the customer or service If a company has distinctly different customer groups, it may create department on the basis of the customer differences. For
Write the organs of excretory system? Answer: The excretory system is made up of bladder, two kidneys, two ureters and urethra.
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Define:(a) Toxins (b) Carcinogens (c) Teratogens (d) Neurotoxins.
How do plants control closing and opening of stomata?
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