Geology Ch 6

Which term best describes all the processes that move weathered rock materials and soils downslope?

What process created finely divided red, brown, and yellow minerals in soils?

Why is the humus layer typically thicker in a cool, temperate forest soil then in a tropical rainforest soil?

Which of the following best describes sets of fractures in relatively fresh bedrock, such as granite, that are roughly parallel to the land surface?

From the land surface downward to the unweathered bedrock, which of the following is the correct order of the different soil horizons

Which one of the following statements concerning soil erosion is NOT true?

Which term describes a soil formed by weathering of the underlying bedrock?

Which regolith material results from frost wedging?

Which of the following best describes the process of mineral subtraction of eluviation?

Which of the following statements concerning humus is NOT true?

During the 1930s, the United States suffered its greatest natural catastrophe. What great natural disaster affected both the farmers and the urbanites and led to the creation of the Soil Conservation Service?

What portion of an angular, fracture-bounded granitic block shows the highest rate of weathering?

Which one of the following statements concerning mechanical weathering is NOT true?

Which one of the following is an important mechanical weathering process for enlarging fractures and extending them deeper into large boulders and bedrock in temperate and arctic environments?

What two factors speed up rates of chemical reaction and weathering in rocks and soils?

Which of the following materials are most susceptible to chemical weathering my dissolution?

Assume that water filling a crack in a rock undergoes cycles of freezing and melting. Which one of the statements is true?

Which one of the following statements best describes erosion?