Praxis II Citizenship

Answer: A -The San Andreas-Gulf of California system is a transform boundary that runs along the West Coast of the United States down past the southern end of Baja, California. Transform boundaries occur when the sides of two tectonic plates rub against each other. The Mid-Atlantic Ridge is a divergent plate boundary, which occurs when two plates are moving away from each other, allowing magma to rise and form new crust. The Marianas Trench and Eurasian-Indian Plates boundary are examples of convergent boundaries. Convergent boundaries occur when two plates collide. This can result in subduction zones (Marianas Trench), where a continental plate collides with an oceanic plate and forces the oceanic plate under it. It can also result in orogenic belts, where two continental plates collide and push upward, forming mountains (Himalayas).