I will give brainleist :) Can someone describe Primary and Secondary succession and the difference including which one involves an empty left alone land developing over time?
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In primary succession, newly exposed or newly formed rock is colonized by living things for the first time. In secondary succession, an area previously occupied by living things is disturbed—disrupted—then recolonized following the disturbance. Example- Primary succession occurs following an opening of a pristine habitat like a lava flow, an area left from retreated glacier, or abandoned strip mine. In contrast, secondary succession is a response to a disturbance, for example, forest fire, tsunami, flood, or an abandoned field.

Because some people pollute water ans waste it

Wheres the rest of the answers to the question?