Presentation on theme: "Soil The nation that destroys its soil destroys itself. Franklin D. Roosevelt."— Presentation transcript:
Soil The nation that destroys its soil destroys itself. Franklin D. Roosevelt
Which BEST explains why a lake is frozen on the surface but not below the surface. A. ice floats B. water freezes at 0 degrees Celsius C. ice lets light through the water D. water is clear.
Ground level: Plants grow and animals live here. A thick cover of plants can keep the soil cool and keep it from drying out. Decomposers recycle dead plants and animals into humus.
This is the soaking into the ground of water on the surface. The fluid moves through pores or spaces between grains of soil.
The ability of body of rock, soil or sediment to allow fluid to pass through it. Optimum permeability is when there are large and rounded sediments. The smaller or finer the sediments the slower the movement of fluids. Clays act as stops for the movement of fluids because the do not have much pore space.