16 Questions
What is the process of breaking down rocks physically or chemically?
Weathering
Which process originates externally to the Earth's surface and shapes the Earth that we see today?
Weathering
Which type of weathering allows the breakdown of rocks into smaller units without changing their chemical composition?
Physical Weathering
What happens when rocks undergo regular freezing and thawing?
Frost Wedging
What geological phenomena and processes originate externally to the Earth's surface?
Exogenic Processes
What is the process of rocks breaking into rectangular blocks or irregular chunks due to physical weathering?
Exfoliation
What process weakens the rock through its pores?
Chemical Weathering
Which process involves the rock surface expanding and contracting due to temperature?
Thermal Expansion
What process involves certain minerals being dissolved in acidic water?
Dissolution
Which process involves water reacting with minerals and breaking them down?
Hydrolysis
What is the highest angle that the side or slope of a mound of unconsolidated sediments will achieve under the influence of gravity called?
Angle of Repose
What can hold sediments together, impeding the action of gravity and affecting the stability and consolidation of material?
Water
What can fill spaces (intergranular spaces) and enable moist sand to achieve steeper sides (higher angle of repose)?
Water
What includes bacteria consuming certain minerals and the secretion of organic acids by other organisms?
Biological Weathering
What type of mass wasting involves a downslope process of transporting bodies from a higher elevation to a lower one?
Mass Wasting
What type of mass wasting involves direct downward pull of gravity in the absence of surface rapid mass wasting movement?
Falls or Rock Falls
Test your knowledge about the exogenic processes that constantly shape the Earth's surface. Explore topics such as weathering, erosion, and transportation, and understand how external geological phenomena have contributed to the Earth's current form.
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