Examine the photographs of sediment samples in the Unknown Samples Gallery, which is under Materials in the Lesson Resources. Match the pictured samples to the environments described in the Student Guide. Sample #
Estimated % Biogenous Material
Estimated % Terrigenous Material
Roundness /
Angularity
Other Helpful
Characteristics
Type of Environment
1
2
3
4
5
6
7

i would say the prokaryotic cells the prokaryotic cells are less complex, are usually found only in unicellular organisms and have more limited capabilities than eukaryotic cells.

increase soil erosion                                             reduce soil erosion

cattle grazing                                                         hydroseeding

deforestation                                                         contour plowing

                                                                                planting vegetation

plant roots basically hold the top soil

together and stop soil erosion because

in such situation top soil is not removed

during flood but cattle grazing causes

soil erosion because cattle consume the

grasses and herbs and top soil is exposed.

same situation occurs because of

deforestation, the trees and plants are cut

down to expose top soil which causes soil

erosion