How does an organism's niche differ from its habitat?

An organisms niche is it's role in the ecosystem. This includes what it eats and what it's eaten by, and is usually affected by it's habitat.

An organisms habitat is simply where the organism lives.

1. what is the relationship between the shape of an enzyme and the reactions they catalyze?

2. how does an enzyme inhibitor work?

separate your answers so i dont get confused : )

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.