Answer:
True
Explanation:
Sewage contains many substances in it like suspended solids, organic and inorganic impurities, nutrients, saprotrophic and disease causing bacteria and other microbes. Hence it is said to be a complex mixture.
It is described as relatively non specific
Answer:
he Industrial Revolution made machine-based manufacturing more common, and increased the population and average income. Instead of farming, people came to cities to work. The millions of workers moved from farms and cottage industries to cities; which caused rising population.
Explanation:
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Passive membrane processes are those that do not require energy and move substances down a concentration gradient; namely, these are diffusion, facilitated diffusion and osmosis.