WorksheetsS&W Conservation
Total questions: 12
Worksheet time: 10mins
Soil is:
steepness of slope, direction of slope, elevation
granular material composed of finely divided rock and mineral particles. It is defined by size, being finer than gravel and coarser than silt.
contains a fairly high proportion of clay particles
with the remainder being sand and silt-sized
particles.
Self renewing compound of rock and mineral particles, organic material,living organisms, air, and moisture.
Plants are the real makers of soil. At the same time, chemical reactions are happening, and bacteria, fungi, worms, tunneling and burrowing insects, and other organisms are active.
True
False
Soil information on most of the nation’s counties can be
found on the Web site of the U.S. Department of
Agriculture’s Natural Resources Conservation Service
True
False
What are 3 conservation practices?
Cover Crops
Terracing
Wetland
Contour Planting
Whenever __________ moves across a bare or poorly covered soil surface, especially if the land is dry
and the soil contains mostly fine and loose particles is soil erosion by __________________________.
(a)
A watershed is...
A shed full of water
a natural body of water that flows south
An area that drains to a specific region
a building to store tools
What are 4 main water pollutants:
Thermal
Sewage
Plant Nutrients
Wood
Infectious Agents
What are the main 3 Plant Nutrients are:
nitrogen
silt
sand
potassium
phosphorus
What are the 3 types of erosion by water are:
Sheet Erosion
Cover Erosion
Gully Erosion
Rill Erosion
Runoff Erosion
Biochemical Oxygen Demand is
After a rain, you can see evidence of this in the small
bits of soil that cling to the walls of buildings, the
leaves of plants, and picket fences.
We call the amount of oxygen required to decompose
the organic matter present in water
is happening wherever muddy water moves off bare
ground without cutting channels in the soil.
After rain has percolated through soil, a thin film of
water that clings to soil particles and remains in tiny
soil pores helps dissolve plant nutrients so
that plants can use them.
Secondary Water Treatment is
When the water vapor in clouds condenses, we get
the rain, snow, sleet, or hail
We call the amount of oxygen required to decompose
the organic matter present in water
repeats all the steps of primary treatment and then
one of two processes for further organic waste
decomposition
mainly involves removing the solids from wastewater.
It is the only kind many towns use,
but there are different methods of accomplishing it.
Gully Erosion is...
After rain has percolated through soil, a thin film of
water that clings to soil particles and remains in tiny
soil pores helps dissolve plant nutrients so
that plants can use them.
After penetrating soil that is already wet, water
may continue moving downward through the soil
by
gets the wastewater clean enough to be run through
a city’s water-treatment process for household use.
A land form created by running water, eroding sharply into soil, typically on a hillside. That resemble large ditches or small valleys, but are metres to tens of metres in depth and width.
