Unit 6 Bronze

An area in the Us that was devastated by extreme drought, soil erosion, and economic depression during the 1930s

Decades of commercial agriculture got rid of the Great Plain’s native vegetation. Many farmers pushed water resources to the limits. Grew wheat which did not protect the ground against high winds Ranchers allowed livestock to overgraze, exhausting the topsoil

They carried tons of soil from the Great Plains to the East Coast This filthy air damaged people’s lungs, causing “dust pneumonia” Piles of dirt were shoveled out of houses and away from barns Cars and tractors were ruined

Taught special methods of farming-such as contour plowing, limited tillage, and terracing This reduced erosion and guarded the soil, which was the service’s overall goal.

Occurs chiefly in rocks, usually in extremely small concentrations Named after the planet Uranus

Open pit mining -Uses explosives to break rock and soil covering uranium near the earth’s surface. -Miners dig blah holes, fill them with dynamite (or other explosives). -Afterwards they blow it up, power shovels clear the rubble away . Finally Smaller shovels dig out the uranium ore Subsurface mining -Used if uranium ore lies far beneath the earth’s surface. -Mining companies dig tunnels into deposits Miners drill into tunnel walls to install explosives (which loosen the ore) -Miners They load the ore into buckets, which are hoisted to the surface

Where uranium is concentrated and purified to an oxide is called yellowcake

Yellowcake (the oxide) is transported to a conversion plant and undergoes chemical reaction with fluorine. The reaction produces uranium hexafluoride which goes to an enrichment plant (U-23 and U-238 are separated from each other, creation enriched uranium (has a high percentage of U-235 then most uranium

Gravel based Coarse sand based soil

Clay-based soil

No, It goes up when it rains and down when there is a drought or for irrigation (dig a well, we use water)

From 1 to 25 b/c the water will stall at the clay boundary and then gravity will move it down hill. (also indicated in table by the direction of the clay)

Definition: Zone which is saturated with water ( all the blue in the graph The underground area where water fills the spaces in the soil with water (saturated with water

Definition: Underground area where all the little spaces btw soil filed with air (all the places where there is not water in the graph (a slighter gray)

As soon as we touch Highest point of water underground (where the two dashes are) Diggy diggy

Define: Does not have boundaries (no clay, water on top of clay)

Define: Aquifer that has boundaries (the one that has the clay over it) under

Define: Triangle goes down (under a urban area) Roads and Cities don’t allow water to sit and percolate. Therefore, We block the aquifer from being refilled We use a lot of water

Oyster farmers in bay People use it for work Dam’s main job is to control flow of river for Apalachicola City and provide electricity River spreads flood lands nutrients to the side of the river (Biodiversity) Concern with drought (low flow) Dam may not be able to produce as much energy Oysters will die off, due to too much or little salinity Loss of jobs or business that rely on oysters Flood plains aren’t able to spread as much nutrients Loss of biodiversity

A lot of farms use water from the flint river and Floridan Aquifer to irrigate (Use aquifers or rivers faster than they can refill, especially in times of drought ) Mussels help to clean the water since they are filter feeders (flow is too low they will not survive and waters will be murkier)

Recreation (tied to tourism, money) (Fishing , kyacking) Nuclear Power Plant Printing Plant (Made wetland to filter water before it returns to river Low flow Decrease lake levels, less recreation, less tourist money, decrease in economy Industry does not have enough wwater (will move) decrease in economy Nuclear Powerplant will have to close down b/c lack of water to cool reactors

Dam, was not supported by Atlanta Main purpose was for flood control, navigation, and electricity (not for water use) They wanted to use it for that though Only recently was it considered a water supply Recreation Low flow Less recreation, failing business, lower economy Dam will not make as much electricity, meaning less power for Atlanta