Which of the following is produced by chemical weathering? Select one: dissolved

Question

Which of the following is produced by chemical weathering? Select one: dissolved silica dissolved iron oxide dissolved calcium carbonate all of the above Why are members of the clay mineral group abundant in soils and sedimentary rocks? Select one: they are the last to break down chemically at Earth's surface they are first to break down chemically at Earth's surface they never break down chemically at Earth's surface they are the first to break down physically at Earth's surface they are the last to break down physically at Earth's surface

Explanation / Answer

1) all of the above .

2) a

Clays are generally formed by the long term chemical weathering processes like hydrolysis of feldspar minerals

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