Why might the risk of infectious disease be high in a community that has no water treatment facility?

Looking at this image, what relationship can be drawn from it? the lower the degree of latitude, the lower the degree of temperature there is no relationship between latitude and temperature the higher the degree of latitude, the higher the degree of temperature the lower the degree of latitude, the higher the degree of temperature

Did you know that a single bee would have to go to over 2 million flowers to make a single pound of honey?

How does human environment effect the biosphere