Question

What are the three types of boundaries, and what actions occur in each one?

Answer 1

Lots of boundary in this world so it depends on the ones you are asking about if they are divergent, convergent and Transform  

divergent = occurs when two tectonic plates move away from each other. 
convergent = when two plates come together
Transform = Two plates sliding past each other

hope this helps 

Answer 2

Good morning, I will me glad to help you with this. Here are the three types of boundaries and the actions that occur in each one of them:

Divergent Boundary: This occurs when two tectonic plates move away from one another. New crust on torn edges of the plates are formed in this process.

Convergent Boundary: This occurs when two tectonic plates come together (and sometimes bend down in seafloor trenches). Mountain ranges are formed in this process.

Transform Plate Boundary: This occurs when two tectonic plates slide past each other. This can create a linear fault valley or a undersea canyon. (No magma is formed in this process, but the crust is damaged)