Geography Flashcards
(26 cards)
What is erosion?
Erosion is the process by which soil and rock are removed from the Earth’s surface by natural processes such as wind or water flow.
True or False: Erosion can only occur on land.
False: Erosion can occur on land as well as underwater.
Fill in the blank: The main agents of erosion include __________, water, and ice.
wind
What type of erosion is primarily caused by rainfall?
Water erosion.
Multiple choice: Which of the following is NOT a type of erosion? A) Water erosion B) Wind erosion C) Chemical erosion D) Solar erosion
D) Solar erosion
What is the term for the movement of sediment by wind?
Aeolian erosion.
True or False: Erosion can lead to the formation of new landforms.
True.
What is the primary cause of coastal erosion?
Wave action.
Fill in the blank: __________ erosion occurs when water flows over the surface of the land and removes soil.
Surface
What is the process of soil erosion by water called when it occurs in a concentrated flow?
Gully erosion.
Multiple choice: Which of the following factors can increase erosion? A) Vegetation B) Heavy rainfall C) Dry conditions D) All of the above
B) Heavy rainfall
What role do plants play in erosion?
Plants help reduce erosion by stabilizing soil with their roots.
True or False: Erosion is a fast process that can happen overnight.
False: Erosion is typically a slow process that occurs over time.
What is the term for the gradual wearing away of rock surfaces by wind and water?
Weathering.
Fill in the blank: __________ is the sediment that is carried and deposited by erosion.
Alluvium
What is the difference between erosion and weathering?
Erosion involves the removal and transport of material, while weathering is the breakdown of rocks without movement.
Multiple choice: Which type of erosion is primarily responsible for shaping valleys? A) Wind erosion B) Water erosion C) Ice erosion D) None of the above
B) Water erosion
What human activities can exacerbate erosion?
Deforestation, urban development, and agriculture.
True or False: Erosion can be completely prevented.
False: Erosion cannot be completely prevented, but it can be managed.
What is a common method used to control erosion on slopes?
Terracing.
Fill in the blank: __________ erosion occurs due to the freeze-thaw cycle in colder climates.
Frost
What is the term for the deposition of sediment in a new location after erosion?
Sedimentation.
Multiple choice: Which of the following is a consequence of erosion? A) Loss of soil fertility B) Increased biodiversity C) Formation of new habitats D) None of the above
A) Loss of soil fertility
What is the impact of urbanization on erosion?
Urbanization typically increases erosion due to the removal of vegetation and increased runoff.