Lesson 4 Flashcards
It refers to the activities or phenomena that occur on earth’s surface. Rocks are naturally exposed to different forces that affect their physical characteristics. wind water gravity etc
Exogenic processes
It is the breaking and crumbling of rocks by physical chemical and biological means that are essential for the rock cycle cell production and movement of materials on the earth’s surface
Weathering
What affect the weathering process
Different climate conditions
Temperature fluctuations
Location of the rocks
It is the process of breaking down rocks without changing their chemical composition
Mechanical weathering
Examples of mechanical weathering
Wind
change in temperature
and water
It is the breakdown of rocks by chemical mechanism
Chemical weathering
Example of chemical weathering that Minerals dissolve when they have contact with water
Hydration
Example of chemical weathering where it is the reaction between rocks and carbonic acid
Carbonation
Example of chemical weathering that can cause rocks to become fragile
Oxidation
The components of soil pile up and are physically removed from their place is called
Erosion
Is the process where rocks are broken down by natural forces such as wind or water
Erosion
Three agents of erosion
Water wind and gravity
It is the most significant agent of erosion
Water as agent of erosion
Is also capable of eroding and depositing materials. It also tends to transport materials to different places due to varying directions where it blows.
Wind as agent of erosion
It exerts pulling action on everything. It makes rocks fall and water flow.
Gravity as agent of erosion
