According to the theory of plate tectonics, where do activities such as earthquakes and volcanic eruptions occur?

I think u meant when becuase they occur when the plates are moving and they usallly occur on and at islands plz mark me as brainlest

The answer to the first one is barometer.

Aeolian processes,  pertain to  wind  activity in the study of  geology  and  weather  and specifically to the wind's ability to shape the surface of the  earth  (or other  planets). winds may  erode, transport, and deposit materials and are effective agents in regions with sparse  vegetation, a lack of soil moisture and a large supply of unconsolidated  sediments. although water is a much more powerful eroding force than wind, aeolian processes are important in arid environments such as  deserts