Statement 1: An earthquake is caused by a disturbance in the inner core of the earth. Statement 2: Tremors on the surface of the earth produce seismic waves which are recorded by seismograph.1 pointStatement 1 is true and statement 2 is false.Statement 1 is false and statement 2 is true.Both the statements are true.Both the statements are false.

Which of the following statements regarding seismic waves due to an earthquake at the Earth's surface, and the inner core is true?Group of answer choicesthe inner core is thought to be liquidPrimary S waves travel through the inner coreP waves do not travel through the inner coreP waves travel through the inner core at a higher velocity than S wavesthe inner core blocks P-, and S-waves

Earthquake is one of the most devastating natural calamities which Blank 1 Question 2 (caused, will cause, had caused, causes) sudden shaking of the earth surface. It, not only causes damage to buildings and other structures but alsoBlank 2 Question 2 (affected, will be affected, had affected, affects) the surrounding environment and our lifestyle significantly. An earthquake can trigger many sudden changes in the environment which can Blank 3 Question 2 (would be classified, will classify, is classified, be classified) as primary and secondary. The subsidence and surface faulting Blank 4 Question 2 (is, was, were, are) the primary changes. The secondary effects are the displaced rocks, tsunami, ground cracks, liquefactions, landslides. These effects are known as earthquake environmental effects. The scales which use these effects of an earthquake as a parameter for assessment Blank 5 Question 2 (is known ,were known ,was known, are known) as Earthquake Intensity Scales. These scales Blank 6 Question 2 (quantified, quantification, quantity,quantify)  an earthquake based on the observed effects on the surroundings .The magnitude scales for earthquakes are logarithmic scales. The Richter scaleBlank 7 Question 2 (are based ,were based, had based, is based) on seismograph readings measuring Earth movement. In addition to the Richter scale, scientists also Blank 8 Question 2 (using ,will use, had used,use) a Moment Magnitude that measures the total energy of an earthquake, called the seismic moment. The seismic moment of an earthquake Blank 9 Question 2 (were determined, are determining, had determined, is determined) based on three factors. The first factor is the distance that rock slides along a fault surface after it breaks, called the fault slip. The second factor is the area of the fault surface that Blank 10 Question 2 (are, was, were, is)  actually broken by the earthquake. And the third factor is the measurement of how rigid the rocks are near the broken fault.

Scientists have determined that Earth's interior has layers with different properties. One property is that the inner core is solid. Which of the following statements can be used as evidence to support this property? A. During an earthquake, both P waves and S waves travel away from the focus through the interior of Earth. B. Seismographs that are far from the epicenter of an earthquake detect P waves much sooner than S waves. C. After an earthquake, P waves are detected on the opposite side of Earth but S waves are not. D. P waves do not refract based on the density of the medium it is traveling in, but S waves do.

Except one, others are Effects of Earthquakes, Which one is it?Question 4Answera.Landslides and deep cracks in surface rocks.b.The rise or lowering of the sea floor.c.Provide fertile soil.d.The devastation of cities, fires and diseases.

TRUE or FALSEDirections: Identify whether the following are true or false. Select the corresponding answers from the given options.1. There are three main types of fault which can cause earthquakes: normal, reverse (thrust) and strike-slip.*1 pointChoose2. The Ring of Fire is a string of volcanoes and sites of seismic activity, or earthquakes, around the edges of the Pacific Ocean.*1 pointChoose3. Tension stress occurs when two blocks of rock separate from one another. Tension stress creates a type of fault known as a reverse fault.*1 pointChoose4. Most seismic activity occurs at three types of plate boundaries—divergent, convergent, and normal.*1 pointChoose5. A boundary is a crack in the Earth's lithosphere that occurs between two pieces of rock. *1 pointChoose6. The Marikina Valley Fault System, one of the most well-known and feared fault lines in the Philippines. *1 pointChoose7. The place where two tectonic plates come together and meet is a plate boundary.*1 pointChoose