UPSC PRELIMS · GEOGRAPHY · GEOMORPHOLOGY
Consider the following statements: 1. Rainfall is one of the reasons for weathering of rocks. 2. Rainwater contains carbon dioxide in solution. Which one of the following is correct in respect of the above statements?
Take a breath. Choose one. Press A–D on your keyboard if you like.
EXPLANATION
Rainwater can chemically weather rocks, and dissolved carbon dioxide forms weak carbonic acid that promotes chemical weathering. Thus both statements are correct and the second helps explain the first.
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