Origami for Everyone gives you full step-by-step instructions for 30 awesome origami projects for everyone from beginners to experts. Learn how to make flowers, masks, and the ubiquitous paper crane!All projects come from Instructables.com, are written by paper folding experts, and contain pictures for each step so you can do it yourself.earn how to make flowers, masks, and the ubiquitous paper crane! All projects come from Instructables.com, are written by paper folding experts, and contain pictures for each step so you can do it yourself.
Along these boundaries, magma rises from deep within the Earth and erupts to form new crust on the lithosphere. Most divergent plate boundaries are underwater (Iceland is an exception) and form submarine mountain ranges called oceanic spreading ridges.
Â· just now. 1  OK. Yeah the first two answers are so wrong! 2  A trench is due to the convergence of two oceanic plates. One is subducted under the other and forms a deep trench. 3  I don't know if the previous two answers are just trying to wind you up but they're both wrong! Mid-ocean ridges (eg. Mid Atlantic Ridge) are formed at constructive plate boundaries, where magma is welling up between two diverging plates and forming new plate materiel. Trenches (eg. Marianas Trench) are formed at destructive plate boundaries where an ocean plate is being subducted below a continental plate.