Soil erosion is primarily attributed to: Question 18 options: exhaustion of parent material, severe climate and leaching poor agricultural practices, overgrazing and deforestation. wildfires, surplus soil organisms and dense vegetation. weathering, excessive tillage and coastal location.

Sandstones that form in aeolian (wind/desert) environments appear very different from other sandstones, such as those formed in a beach/ shoreline environment and in rivers on land. give three identifying properties for each of the three sandstones that would tell a geologist which depositional environment they formed in. consider things such as the relationship between transportation and grain size, shape, roundness, sorting, fossils and composition.

In the following diagram, four different index fossils are labeled: which of the labeled fossils comes from the oldest organism? a b c d

In the diagram below, ab and bc are tangent to o. what is the measure of