Watersheds
What's the definition of a watershed?
A watershed is a region or area draining to a particular watercourse or body of water
What is soil?
Soil is a living, complex, and dynamic natural body covering the Earth's surface, consisting of a mixture of minerals, organic matter, gases, liquids, and organisms
What is fertilizer?
Substances added to soil or plants to help them grow better?
What are pesticides?
Chemicals or biological agents are used to prevent pests. These agents can kill or repel pests.
What is waste?
Any material, substance, or byproduct that is discarded.
What is a waterbody?
A river, lake, stream, ocean, pond or basin; water bodies receive runoff waters from a watershed.
What is soil pollution?
Pollutants in soil, such as toxins or heavy metals.
How many types of fertilizer are there?
2: synthetic and natural
What's a very common household pest?
Cockroaches
What is a treatment used to filter out waste?
Water treatment plant
Is there a watershed in California? If so, what is it called?
The mojave river watershed
Where can soil pollution be found?
Farms, construction sites, and myabe under your own feet.
Which fertilizer works better and why?
Synthetic because it works faster
What are pests?
Any living organism that causes harm to humans.
What are examples of waste?
Plastic, chemical runoff, and untreated sewage
What is stormwater runoff?
Water that originates from rainfall or snowmelt that flows across the land surface and is ultimately discharged into a nearby water body, such as a stream, river, or lake.
Nonpoint sources of soil
Agricultural runoff, urban stormwater, construction site erosion, livestock waste, and atmospheric deposition.
Nonpoint sources of fertilizer
Fields, Playgrounds, Roads -> Runoff from stormwater, Pipes -> Runoff from stormwater, Multiple farms → runoff, Neighborhoods, Hillsides
Nonpoint sources of pesticides
Fields, roads, playgrounds, roads -> Runoff from stormwater, pipes -> Runoff from stormwater, multiple farms → runoff, neighborhoods
Nonpoint sources of waste
Agricultural runoff, urban runoff, construction sites/runoff, land clearing
How big is the watershed in America?
2/3 of America is a watershed that drains into the Gulf of Mexico.
Point sources of soil
Industrial pipelines, leaking underground storage tanks, malfunctioning septic systems, landfills, mining tailings
Point sources of fertilizer
Single garden, Pipe carrying runoff, Farm Silo, Gardening equipment in the yard
Point sources of pestisis
Single front lawns, pesticide storage tank, yard sprayer, single farm, lawn
Point sources of waste
Factories, Sewage treatment plant, Landfills (single), Stormwater pipes