Q1 First Long Test

The Ring of Fire, also called the Pacific Ring of Fire, is a long horseshoe-shaped seismically active belt of earthquake epicenters, volcanoes, and tectonic plate boundaries. The belt follows chains of island arcs including the Philippines. How do you think living along the Ring of Fire affects the people along the coast?

• These people must hate their location and thus, choose to live somewhere else.

• These people must be excited that they live in a volcanic zone.

• These people must be happy that they are somewhat far from the volcanic zone.

• These people must be afraid of earthquakes.

The places on Earth where most of the earthquakes originated or some mountains and volcanoes were formed mark the boundaries of each lithospheric plate. Each plate is slowly moving relative to each other, causing geologic events to happen along their boundaries. How will you relate the distributions of mountain ranges, earthquake epicenters, and volcanoes on the Earth's surface?

• Mountain ranges are found in places between where volcanoes and earthquake epicenters are also situated.

• Mountain ranges are found in places where volcanoes and/or earthquake epicenters are also situated.

• Mountain ranges are found only in places where earthquake epicenters are situated.

• Mountain ranges are found only in places where volcanoes are situated.

According to the plate tectonics model, the entire lithosphere of the Earth is broken into numerous segments called plates. There are seven large plates and a number of smaller ones, including the Philippine Plate. The plate moves very slowly but constantly, and this movement is called tectonics. Based on the given statement, which theory states that pieces of Earth's crust are in constant, slow motion driven by movement in the mantle?

• Theory of Continental Drift

• Theory of Pangaea

• Theory of Plate Tectonics

• Theory of Plate Boundaries

Majority of the islands in the Philippine archipelago are considered as part of the Philippine Mobile Belt. These islands were formed 65 million years ago at the southern edge of the Philippine Sea Plate and are considered as part of island arcs. There were formation of trenches and active volcanic chain and shallow earthquakes. Some of the known active volcanoes in this chain are Pinatubo in Central Luzon and Taal in Batangas. Why did the distribution of earthquakes and volcanoes help confirm plate tectonic theory?

• Both earthquakes and volcanoes were distributed randomly.

• Earthquakes and volcanoes were different along different types of plate boundaries.

• Earthquakes and volcanoes were the same along all types of plate boundaries.

• Neither earthquakes nor volcanoes had been studied much before plate tectonics.

Raphael is a Grade 10 student at Francisco Osorio Integrated Senior High School. He learned about the West Valley Fault also known as the Big One. At school, his teacher discussed the importance of being prepared when a disaster comes. The school often conducts drill and he always make it a point to be able to attend the drill. He followed the necessary precautions needed when an earthquake comes. Why is it important to be aware of places prone to earthquakes and to be prepared for it?

• to identify what crop must be stored

• to identify when to evacuate

• to locate where to stay best

• to perform necessary precautions

The Great Rift Valley System, which runs from the Middle East to Mozambique in the south, is the most popular rift valley on the planet. This geologically active region is characterized by having volcanoes, hot springs, geysers, and frequent earthquakes. What type of plate boundary exists on a certain island if you can find rift valley?

• Divergent boundary. Rift valley is a result of plates moving apart.

• Transform boundary. Rift valley is formed when two plates move toward each other.

• Convergent boundary. Rift valley is a result of plates moving apart.

• Conservative boundary. Rift valley is formed when two plates move toward each other

The Himalayas run the length of India's northeastern coast and cross through India, Pakistan, Afghanistan, China, Bhutan, and Nepal. The Greater Himalayas, Lesser Himalayas, and Outer Himalayas are three parallel mountain ranges in the Himalayan range. They continue to grow at a rate of 1 cm per year, which will amount to 10 km in a million years. The Himalayas are a geologic feature that resulted from the collision of the Indian plate with the Eurasian plate. Which of the following statements best describes the Himalayas?

• The Himalayas are an example of a fault because of their length scale.

• The Himalayas are ocean trench because of the collision of the continental plate and an oceanic plate.

• The Himalayas are a mountain range that formed when two continental plates collided.

• Eurasian plate and Indian plate are both continental plates, and their collision resulted in the formation of the Himalayas, a volcanic island arc.

In transform plate boundary, two plates slide past each other. The fracture zone that forms a transform plate boundary is known as a transform fault. Most transform fault boundaries are found in the oceans; a few are on the continents. An example of this type is the San Andreas Fault. Where is it located?

• Marikina, Philippines

• California, USA

• Japan

• Saudi Arabia

The following are the secondary effect of movement of the plates, which of the following is NOT?

• tsunami

• landslide

• fire

• earthquake

Which of these is NOT true about the Philippines islands?

• most are part of the Philippine Mobile Belt except for Palawan, Mindoro, and Zamboanga

• formed because of the convergence of the Philippine plate and the Pacific plate

• originated geologically in an oceanic - continental convergence

• some are products of subduction process