When the enzyme is at its most active state and most of the substrate has bound the enzyme, an increase in the concentration of substrate will

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they had the law tat factories that produces smoke cannot be built near residential buildings.

building of proper sewage system was done to ensure that the waste is carried away from the humans so that they do not get diseases from it.

also they built water systems to provide water in those areas which are drought prone.

condenser is used to focus in the light microscope.