Soils
What horizon is composed of organic detritus such as leaves, needles, twigs and even animal bodies?
O Horizon
The type of mining where miners remove the top of a mountain with explosives?
mountaintop removal
The layer that humans live on
Crust
Divergent plate boundary
An area beneath the ocean where tectonic plates move away from each other
The breakdown of rocks and minerals by chemical reactions, the dissolving of chemical elements from rocks, or both.
chemical weathering
Human activity that affects the soil for centuries
Overuse of land for agriculture
The removal of strips of soil and rock to expose ore
strip mining
Made of solid iron and nickel
inner core
Where two tectonic plates collide with each other
convergent boundary
The mechanical breakdown of rocks and minerals?
physical weathering
Order of soil horizons
O,A,E,B,C
The two types of mining on land?
surface mining and subsurface mining
Located in the Outer part of the mantle
Asthenosphere
The process of new oceanic crust forming as magma rises toward the surface and solidifies
sea-floor spreading
Physical removal of rock fragments from a landscape or ecosystem
Erosion
Whats horizon is also known as TopSoil
A Horizon
Whats also known as Tailings?
Mining spoils
The brittle outermost layer of the planet
Lithosphere
Lots of earthquakes happen at this boundary
transform boundary
Chemical and mechanical weathering, and erosion are all components of.
Rock cycle
Greater amounts of organic material are present in a
Mature soil
The process of looking for metals and precious stones in river sediments?
placer mining
The lithosphere is made up of
Several large and numerous smaller plates
Tectonic cycle is
The sum of the processes that build up and break down the lithosphere
Responsible for rapid degradation of old statues, gravestones, limestone, and marble.
acid rain/acid precipitation