if sediments in the river had an average diameter of 1mm, would the sediment be eroded, transported, deposited and why?

Geologists know that potassium-40 decays to argon-40, with a half-life of 1.3 billion years. if an analysis of a feldspar crystal in a sample of granite shows that 75 percent of the potassium-40 atoms have decayed to form argon-40, what is the age of the granite

Rocks that contain crystals that are roughly equal in size and can be identified with the unaided eye are said to exhibit a texture.

At which point on the diagram do convection currents occur to drive plate movement?