EAPS 105: Homework 1 Questions and Answers | Latest Version | 2025/2026 | Correct & Verified

EAPS 105: Homework 1 Questions and Answers | Latest Version | 2025/2026 | Correct & Verified What is the Earth’s approximate age? A. 1 million years B. 100 million years C. 4.6 billion years D. 10 billion years Which layer of the Earth is the hottest? A. Crust B. Mantle C. Outer core D. Inner core What type of rock forms from cooling magma or lava? A. Igneous B. Sedimentary C. Metamorphic D. Organic Which process turns sediment into sedimentary rock? 2 A. Melting B. Compaction and cementation C. Evaporation D. Folding Which rock type forms due to heat and pressure? A. Igneous B. Sedimentary C. Metamorphic D. Volcanic What mineral property describes resistance to scratching? A. Hardness B. Color C. Density D. Luster Which mineral is composed only of carbon? A. Diamond B. Quartz C. Feldspar D. Halite 3 What is the most abundant element in Earth’s crust? A. Oxygen B. Silicon C. Iron D. Aluminum Which plate boundary is associated with earthquakes and volcanoes? A. Transform only B. Convergent C. Passive D. Stable What causes tectonic plates to move? A. Wind B. Gravity alone C. Mantle convection D. Earth’s rotation Which boundary occurs when plates move away from each other? A. Divergent B. Convergent C. Transform D. Passive 4 Which landform is created at divergent boundaries? A. Trenches B. Mid-ocean ridges C. Fold mountains D. Volcano arcs What type of stress pulls rocks apart?