Attempt this previous-year question. The correct option stays hidden until you choose.
Consider the following statements :
Statement-I: Rainfall is one of the reasons for weathering of rocks.
Statement II: Rain water contains carbon dioxide in solution.
Statement-III: Rain water contains atmospheric oxygen. Which one of the following is correct in respect of the above statements ?
Pick an option to check yourself.
• Correct Answer: A
• Rainwater dissolves atmospheric CO2 to form carbonic acid, causing carbonation weathering of rocks like limestone.
• Dissolved atmospheric oxygen in rainwater promotes oxidation weathering, especially in iron-rich rocks.
• Both mechanisms correctly explain rainfall-induced chemical weathering.
Attempt Prelims MCQs or open Mains questions by paper — then continue the same bank inside the app with visual decks.
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