Consider the following statements with reference to weathering-
1. Weathering is an erosional process that involves the chemical break down of rock (such as limestone) and the mechanical wearing down of rock by a plant’s roots growing and pushing through it, ice expanding in its cracks, and abrasion from sediment pushed by wind and water.
2. Weathering can for example result in rock falls and eroded rock .
3. At the same time, the use of more precise physical measurement techniques, including differential GPS, remotely sensed digital terrain models and laser scanning techniques, have allowed quantification and study of these processes as they happen.
4. Computer simulation and modeling may then be used to test our understanding of how these processes work together and through time.
5. Geomorphically relevant processes generally fall into the production of regolith by weathering and erosion, the transport of that material, and (3) its eventual deposition.
Select the correct answer using the codes given below.
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