Name the different agents of weathering.
Answers
Explanation:
wseNotessearch
Search for any book or any question
Science
MENU
What are 12 agents of weathering?
print Print document PDF list Cite
Expert Answers info
LUPE TANNER, PH.D. eNotes educator | CERTIFIED EDUCATOR
Weathering is the process of breakdown of rocks and soil by a number of agents. Unlike erosion, weathering does not involve the motion of rocks. Various weathering agents are:
Water: causes hydration of rocks and minerals.
Gravity: an agent of physical weathering and causes abrasion.
ice: in cold regions, ice formation and subsequent thawing, changes the gap size between rock fragments, loosens them and causes weathering.
acids: acid attack is a common cause of weathering. carbonic acid and sulfuric acid are commonly implicated as agents of chemical weathering.
salts: crystal formation of salts in the gaps and fissures also causes weathering of rocks.
winds: can shape and move loose fragments, thus progressively weathering the rocks.
plants: grow into crack and fissures. The expanding roots, uptake of chemicals and release of chemicals into rocks causes weathering.
animals: burrow animals break down rocks, other animals use other means to cause weathering.
temperature changes: heating and cooling enhances weathering.
pressure changes
gases: such as carbon dioxide, oxygen, sulfur oxide, etc. causes acidification or oxidation of rocks.
microorganisms: break down, acidify and chemically attack soil and rocks and causes weathering.
Hope this helps.
Answer:
In physical weathering temperature,water and frost are responsible for physical weathering.
In chemical weathering dissolved carbon dioxide or moist air forms carbonic acid which reacts with mineral in rocks.
In biological weathering plants,trees and animal also contribute to the weathering.
Explanation:
hope it helps u.
thanks.