The Earth's crust is fragmented into ten plates, which are displaced by the movements of the mantle. Where the plates come together, they crunch over each other, dragging the rocks that were at the bottom of the ocean deep into the bowels of the Earth.地球的地壳裂成了十个板块，这些板块...
This shifts weight onto the muscles at the back of the head and causes the bone to grow in a way that is not normal. This process can be compared to the way the skin hardens in response to constant rubbing or pressure. The result is a piece of bone like a horn that sticks out from...
They add that although Greece is no stranger to earthquakes, seismic activity of such frequency and intensity without having been preceded by a major quake is unusual. Image:Pic: Reuters The epicentres of the quakes are beneath the seabed, which experts have sai...
Thus, the most powerful equipment is often the hardest to move quickly to the battle zone. There are places the mighty M1 can't reach in time to be effective. The Army's new Stryker project is an attempt to find a workable balance between power and mobility. It's a vehicle system ...
Plate tectonics refers to the movement of the Earth's crust. This movement is caused by the heat generated in the Earth's core causing convective flow of the molten rock, or magma. The crust of the Earth consists of 7 major tectonic plates. ...
on liquid magma. These pieces are calledtectonic plates. As they move, they can sometimes rub together, causing the ground to shake. When two plates move suddenly, the water on the surface of the Earth gets displaced and can cause a wave. The wave begins to move, and a tsunami is born...
slab pull could draw the oceanic crust under the continent, actually causing the Americas to move eastward toward Europe and the ocean floor to get smaller.That is, the Atlantic Ocean would start to close up, narrowing the distance between the eastern edge of the Americas and Europe and Africa...
What is tension disc? Tensions diskscontrol the amount of pressure applied to the thread for an even feed to the machine needle causing an evenly formed stitch. ... Always have the presser foot raised when threading the sewing machine so that the disks are not engaged and are open to accep...
causing the armature to oscillate. Since the diaphragm is connected to the armature, it will move synchronously with the latter, thus producing sound waves. When the armature becomes centered within the magnetic field, there’s no net force applied to the armature, which gives it its “balanced...
It is the fluid found inside cells. Extracellular fluid is the fluid that bathes the body's cells and circulates through the body. Examples of extracellular fluid include lymph fluid, interstitial fluid, and blood plasma.Answer and Explanation: ...