Which geographical process caused the andes mountains?

In a convergent plate boundary, two plates move towards one another. Due to this collision, the denser plate sinks below the less denser plate. It is marked by a subduction zone and deep-sea trench. Deep focus earthquakes originate in these regions. due to the high temperature and pressure at greater depth, partial melting takes place, as a result of which the plate melts and the magma being less dense, rises up towards the surface in the over-riding plate, forming volcanoes or chain of volcanic islands.

The San Andes Mountain also has formed in this way, by sharing a convergent plate boundary, where the denser Pacific plate (Oceanic crust) is subducting beneath the less dense South American plate (Continental plate).

the topic i chose to write about was " why scuba diving is so popular". the topic is suitable for the audience because it is the easiest to develop and explain, it can be explained in a simpler more conversational manner, it does not require the use of too many technical words, and the final reason for selecting this topic is that it is the one most people can relate to, you might not know too much about scuba diving, but you could probably agree that it is very popular. the purpose of the writing about this topic is to convince more people about the benefits both for the body and the mind that   scuba diving can have on a person. it can you keep fit since it requires a lot of energy when swimming underwater; it also you relax because you forget about the world when you are underwater being mesmerized by the underwater world. i would write this paper in the summer, a perfect time to give scuba diving a try if a person has not done it yet.

a.

congress passed laws allowing for free passage between states.