Pollution



All activities on Earth, both natural processes and human-made processes, produce some type of byproduct from the activity. Under normal conditions these byproducts, some known as **//__pollutants__//**, are returned back into the environment

__Pollution__ is the contamination of the soil, water, air, or other parts of the environment by something harmful  This type of pollution that enters the water directly from a specific location; such as from a pipe or landfill //(source of pollutant is known)// 

The most common point-source pollutants in surface water are:
**High-temperature discharges** (kills water life and causes excessive plant growth) **Microorganisms** (such as bacteria and viruses) **Nutrients** (such as nitrogen and phosphorus)


storage and handling of pesticides or fertilizers; animal feeding operations; animal waste treatment; waste spills and storage tanks; wastewater treatment plants; landfills (garbage dumps); septic systems == This type of pollution occurs as water moves across the land or through the ground and picks up natural and human-made pollutants, which are then deposited in lakes, rivers and groundwater  ==


crop irrigation and mixing of pesticides or fertilizers (runoff); rainfall and snowmelt of air pollution; lawn maintenance; waste spills;

[|Find the Pollution: Games]
<span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 140%; text-align: center;">[|Untrue Effects of Pollution]

<span style="color: #808000; display: block; font-family: 'Arial Black',Gadget,sans-serif; font-size: 110%; text-align: center;">