* find the definition of the following:1. Plate tectonics2. Lithosphere 3. Crust4. Continental crust 5. Oceanic crust6. Focus7. Epicenter8.earthquake 9. Types of seismic waves
Answer (1)
Answer:1. Plate tectonics – A theory explaining the movement of large plates of Earth's lithosphere.2. Lithosphere – The rigid outer layer of Earth, made up of the crust and the upper mantle.3. Crust – The Earth's outermost solid layer.4. Continental crust – The thick, less dense part of the Earth's crust that forms the continents.5. Oceanic crust – The thinner, denser part of the Earth's crust beneath the oceans.6. Focus – The point underground where an earthquake starts.7. Epicenter – The point on Earth's surface directly above the focus.8. Earthquake – The shaking of the Earth's surface caused by a sudden release of energy in the crust.9. Types of seismic waves • P-waves (Primary waves) – Fastest, compressional waves.• S-waves (Secondary waves) – Slower, side-to-side motion.• Surface waves – Slowest, cause most damage, move along the Earth's surface.
