How do people with no access to a public water supply obtain water for their homes? (site 1)

- Through natural stream such as river.

- Through a stagnant water body such as lake or pond.

- Through man made water collection structure such as wells, reservoirs, tube wells etc.  

- Through rain water harvesting where they use the water collected.

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 : )