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

San Andreas earthquake would be classified as occurring on a ____________fault. Due to faults are found along boundaries of tectonic plates sliding past each other.*1 pointnormalstrike-slipreversedivergent

. What is the primary cause of earthquakes? (3)2. Describe the process of plate tectonics and its relationship to earthquakes. (6)3. What are the different types of plate boundaries where earthquakes occur? (6)4. How do faults contribute to the occurrence of earthquakes? (4)5. Explain the concept of elastic rebound theory in relation to earthquakes. (6)6. What role do stress and strain play in the buildup of seismic energy? (3)7. Discuss the difference between tectonic and volcanic earthquakes. (4)8. What is a fault, and how does it relate to the Earth's crust? (4)9. Explain the difference between normal, reverse, and strike-slip faults. (6)10. Explain the difference between the focus and epicenter of an earthquake in relation to fault movement. (4)

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.

1. What is the location where the rupture of an earthquake begins and energy is released called?*1 pointfaultfocusepicentertectonic plates2.  What is a sudden and violent shaking of the ground that sometimes causes great destruction due to movements within the earth's crust or volcanic action?*1 pointeruptionlandslideearthquaketectonic plates3. The point on the earth's surface vertically above the focus of an earthquake.*1 pointfaultfocusepicenterplates3.  Scientists use different ways to find out if a fault is active. Which one is NOT included?*1 pointScientist created a fault model.Scientist observed the surroundings.Scientist checked the country’s historical record.Scientist studied the past and present vibrations.5.  Which scale measures the magnitude, or size, of an earthquake?*1 pointFujita ScaleSeismoscaleMercalli ScaleRichter Scale6. Scale that is based on observable earthquake damage.*1 pointFujita ScaleSeismoscaleMercalli ScaleRichter Scale7. Why can't we feel all of Earth's earthquakes?*1 pointIt happen so fast.It is very gentle.It is not happeninng.It happen deep inside the Earth.8.   What should expect to happen immediately after an Earthquake?*1 pointaftershockseruptiontyphoontsunami9.  How do scientists find out the intensity and duration of Earthquakes?*1 pointSeismic wavesSeismographSeismogramSeismos10. What is a wave generated by earthquake vibrations called?*1 pointSeismic wavesSeismographSeismogramSurface wave11. Earthquakes are common occurrence in Japan, Indonesia, and Philippines. Why is this so?*1 pointJapan, Indonesia and Philippines are surrounded by seas.Japan, Indonesia and Philippines are located near the equator.Japan, Indonesia and Philippines are considered archipelagic countries.Japan, Indonesia and Philippines are found within the Pacific Ring of fire.12. Based on measurement of the maximum motion recorded by a seismograph.*1 pointtremorsintensitymagnitudeseismic waves13.  The strength of the shaking from an earthquake is called ___________.*1 pointtremorsintensitymagnitudeseismic waves14. Seismic scale used and developed by the Philippine Institute of Volcanology and Seismology to measure the intensity of an earthquake. It was developed as upon a specific response to the 1990 Luzon earthquake.*1 pointMercalli scaleRichter scaleSeismoscalePEIS15. Scientists who study earthquakes, their causes and effects?*1 pointearthquakologistvolcanologistseismologistsmeteorologist16. What is the study of earthquakes?*1 pointseismologyvolcanologyearthquakologyplate tectonicology

Earthquakes are a type of ____ hazarda.Biologicalb.Culturalc.Chemicald.Physical