Which are physical processes?
earthquakes
erosion
chemical weathering
recycling
mining
volcanoes

Earthquake, erosion, chemical weathering and the volcano.

Explanation:

 The physical process is the type of the natural process which can be change into some specific change and also able to change the various types of physical feature on the earth. It is one of the sustained phenomenons.

On the earth, the physical process created the constant change. The earthquakes, chemical weathering ,erosion and the volcano are the examples of the physical process which can be occur due to the natural process.  

it sounds like either a or c

true. earthquakes are felt whenever there is a slip around a fault in the rocks below the earth. this reorientation of faults create sesmic waves and is known as earthquake, the severity of which is measured in richter scale. these are more prominent in hilly regions as the rocks usually form faults to balance the pressures on it.