Buffering By Soils From Weathering

Question 0

Weathering occurs when minerals in the soil

Answer 0

Come into contact with soil water. The presence of carbon dioxide in soil water (which lowers the pH of the water) accelerates the process.

Question 1

Involves the breakdown of primary minerals (feldspars and olivines) to

Answer 1

Form new secondary minerals. This releases aqueous ions into the soil during the process.

Question 2

The secondary minerals can

Answer 2

Further decompose in the soil solution.

Question 3

Basic cations and

Answer 3

Acidic cations (H+ & Al3+) into the soil solution.