Sent by Brie. Editor: Brie, fennel is a bulbous vegetable with a tall, wispy, fronded top that looks rather like dill. The fronds can be used in salads, but the main attraction of fennel is the bulb itself. It's very firm and crunchy, and it tastes a bit like licorice and anise. It has a fresh, bright taste and it's one of our favorite vegetables for salads and slaws. It can also be grilled or braised until tender.
Origin of the Ocean Basins. The ocean basins are the result of tectonic forces and processes. All of the ocean basins were formed from volcanic rock that was released from fissures located at the mid-oceanic ridges. The oldest rocks found in these basins are approximately 200 million years old. This is a lot younger than the oldest continental rocks which have ages greater than 4 billion years.
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.