pakisagutan po all questions
Answer (1)
Answer:Q1. What element is the most abundant in the Earth’s crust? - Answer: Oxygen. Q2. What elements make up most of the mantle? - Answer: Silicon, Oxygen, Magnesium, and Iron. Q3. What is the special feature of the upper mantle? - Answer: The upper mantle is partially molten and contains a layer called the asthenosphere, which is very important for plate tectonics. Q4. How did scientists come to know that the outer core is liquid? - Answer: Scientists use seismic waves from earthquakes to study the Earth's interior. The way these waves travel through the Earth tells us about the different layers. The outer core is liquid because seismic waves travel slower through this layer. Q5. What materials make up the inner core? - Answer: The inner core is primarily made up of iron and nickel. Q6. Is the inner core solid, liquid, or gas? What keeps it in this phase? - Answer: The inner core is solid. The immense pressure from the weight of the Earth's layers keeps the inner core solid, even though the temperature is incredibly hot. Q7. Compare the inner core and the outer core. - Answer: The inner core is solid, while the outer core is liquid. The inner core is hotter than the outer core, but the immense pressure keeps it solid. The outer core is made up of molten iron and nickel, while the inner core is primarily iron with a small amount of nickel.
