As strain accumulates in the lithosphere, more and more __ is stored. A. _force
ID: 110806 • Letter: A
Question
As strain accumulates in the lithosphere, more and more __ is stored. A. _force B. _tension C. _compression D. _energy When enough stain has accumulated, a rupture and slippage occurs along a(n) __ which is a fracture in Earth's lithosphere. A. _earthquake zone B. _fissure C. _fault D. _seismic zone it can take __ to for plates to accumulate large amounts of strain due to plate motions, but only __ for that strain to be released during an earthquake. A. _tens to hundreds of years, seconds to minutes B. _seconds to minutes, tens to hundreds of years When an earthquake occurs, vibrations known as ___ wavers are radiated into Earth's interior and along its Surface. A. _earthquakeExplanation / Answer
Answer: 2. D.Energy
Explaination: When a lithosphere is accumulated the enegry is stored in it is called elastic strain energy. Energy is spread during earthquakes. As rocks on opposite sides of a fault are subjected to force and shift, they accumulate energy and slowly deform until their internal strength is exceeded. At that time, a sudden movement occurs along the fault, releasing the accumulated energy, and the rocks snap back to their original undeformed shape.
This change is shape is happen due to strain and stress. The nature of the strain depends on the manner in which the stress is applied For instance, strain can result from acting in compressional stresses, where the material is pushed together, or from tensional stresses, where the rock is pulled apart. Stress can be applied equally on all sides of a body which is called pressure, or in a single direction also we can say that the tensional force is applied on the rock from all the side or from one side. It can cause to bend the rock. Because strain can be expressed as a percentage change - in length, in volume, or in shape - it is commonly expressed as a percent, without any metric units attached.
Answer: 3 c. Fault
Expalination: Most natural earthquakes are caused by sudden slippage along a fault. Faults occur when brittle rocks fracture and there is displacement of one side of the fracture relative to the other side. Earthquakes occur when energy stored in elastically strained rocks is suddenly released. This release of energy causes intense ground shaking in the area near the source of the earthquake and sends waves of elastic energy, called seismic waves, throughout the Earth. Earthquakes can be generated by bomb blasts, volcanic eruptions, sudden volume changes in minerals, and sudden slippage along faults.
Answer: 4. A. tens of hundreds of years, seconds to minutes
Explaination: Storage of the tenstionaal strain in the plates of the lithosphere is big prosess. it can take thousands of year to store that tensional energy in the plates. Because this tensional energy is produced by the plate movment which is not sudden movement. But this stored energy can be converted into an earthquack within a second or minutes which is a sudden movement. we often saw that the earthquack occurs very rapidlly which is because this stored energy is relesed during the earthquack.
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