Which is not a chemical weathering process?

Which clastic sedimentary rock would be more likely deposited in a low energy environment? 

What is one of the main agents involved in creating minerals in chemical sedimentary rocks, is a universal solvent, and is a weathering and erosion agent that produces grains of sediment?

For clastic sedimentary rocks, what is NOT a general trend in the grain characteristics as sediment get transported farther away from the sediment's source rock?

Which is NOT considered a transitional depositional environment? 

Sediment with sharp angular clasts usually implies:

A sedimentary rock which contains environmental clues, such as grey-green mudstones with laminations and freshwater fossils, would mostly likely indicate which depositional environment?

A sedimentary rock which contains environmental clues, such as well sorted sandstone with reddish coloring from oxidation and >1 meter (3ft) cross-beds, would mostly likely indicate which depositional environment?

Clastic sedimentary rocks are classified (dominantly) based on what? 

*There are three physical characteristic, but as stated in lecture, one dominates when classifying the types of clastic sedimentary rocks.