Primary coastlines are those formed mainly by coastal geomorphic agents, especially waves, and by aquatic organisms
a. True
b. False
Indicate whether the statement is true or false
False
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Slate and marble are ____ rocks
a. Primary b. Secondary c. Metamorphic d. Igneous e. Sedimentary
The IUCN's Red List is ________
A) an updated list of species facing unusually high risk of extinction B) a list of unidentified species C) a list of ecologically harmful invasive species D) a scorecard of international failures at conservation E) an identification list of known species
The selective removal or alteration of specific components of a rock that leads to its weakening is called
A. Chemical weathering B. The rock cycle C. Mechanical weathering D. Abrasion E. Sedimentation
Deforestation of rain forests exposes tropical soils that are famous for their low fertility, despite the fact that they had previously hosted a lush tropical forest. Which soil type would describe these soils?
A) Andisols—young soils formed on volcanic ash and volcanogenic sediment B) Histosols—Organic soils with little or no climatic implications. Can be found in any climate where organic debris can accumulate to form a bog soil. Dark, partially decomposed organic material commonly referred to as peat C) Vertisols—Soils containing large amounts of clay, which shrink upon drying and swell with the addition of water. Found in subhumid to arid climates D) Oxisols—Soils that occur on old land surfaces unless parent materials were strongly weathered before they were deposited. Rich in iron and aluminum oxides, Oxisols are heavily leached, hence are poor soils for agricultural activity