14 The main sources of radioactive heat are four long-lived isotopes. Which of the following isotopes is B. U-235 C. Th-232 not one of them? A K-40 D. Ra-226 15. Which of the following is not one of the Earth's internal heat sources? A. Heat from when the planet formed and accreted, which has not yet been lost. B. Heat caused by denser core material sinking to the center of the planet. C. Heat from the decay of radioactive elements. D. Heat from buming fossil fuels and wildfires 16. Heat transfer is the movement of thermal energy from a warmer place to a cooler place. Which of the following statements about heat transfer is incorrect? A. Conduction is the movement of heat from areas of more heat to areas with less heat through indirect contact. B. Convections is the process by which air, or other matter, rises or sinks because of differences in temperature. C. Radiation is the transfer of energy between two objects by electromagnetic waves. MANO D. Heat flows from center of Earth to surface via simultaneous conduction, convection, and radiation. 17. Pressure is one of the factors that cause metamorphism. Which of the following is not true about pressure? TA The higher the pressure, the greater the degree of metamorphism. B. Tectonic pressure is caused as the rocks undergo folding or faulting. C. Pressure steadily increases with depth and is applied to rocks in three different ways. D. Load pressure is the weight of underlying rocks and physically brings minerals into contact with each other over very long periods of time. 18. Which of the following statements is/are true? A. Burial metamorphism is the highest grade of metamorphism. B. Regional metamorphism can result from either subduction or continental collision. C. Contact metamorphism produces foliated rocks such as.marble, quartzite, and hornfels. D. both A and C 19. Which of the following statements is false? A Igneous rocks formed through the cooling and solidification of magma or lava. B. Extrusive igneous rocks cool and solidify more quickly than intrusive igneous rocks. C. Solidification into rock occurs either on the surface as intrusive rocks or below the surface as extrusive rocks. D. Intrusive igneous rocks originate from magma that cools and solidifies within the crust surrounded by pre-existing rock. 20. Which of the following statements is false for intrusive igneous rocks? t A. Have a coarse-grained texture. B. Forms when magma is trapped deep inside the earth C. Produced when magma exits and cools above the earth's surface D. Slow cooling enables the individual mineral grains to have a very long time to grow. 21. Which of the following statements is false? A. Strata are typically seen as bands of different colored or differently structured. material exposed in cliffs, road cuts, quarries, and riverbanks. B. Layers of bands are called strata. C. A band may represent a specific mode of deposition: river silt, beach sand, coal swamp, sand dune, lava bed, etc. D. Beds are the layers of sedimentary rocks that are distinctly different from overlying and underlying subsequent beds of different sedimentary rocks. nde are 22. Which of the following statements about beds is/are true? A. Types of beds include cross beds and graded beds. B. Graded beds show a gradual change in grain or class sizes from one side of the bed to the other. c. Cross beds are not layered horizontally and are formed by a combination of local deposition on the inclined surfaces of ripples or dunes, and local erosion. D. all of these 23. It states that in any undisturbed sequence of rocks deposited in layers, the youngest layer is on top and the oldest on bottom, each layer boing younger than the one beneath it and older than the one above it. Law of Original Horizontality C. Law of Superposition B. Law of Lateral Continuity D. Law of Cross-Cutting Relationship 24. Which of the following is not an example of absolute dating? A. fluorine dating C. radiocarbon dating B. potassium-argon dating D. amino acid dating 25. Which of the following radiometric dating methods is most suitable to determine the age of lake sediments? A fission track C. K-40 to Ar-40 B. luminescence D. radiocarbon 26. Igneous rocks form from the cooling of magma, it may happen on the surface of the earth (extrusive) or underground (intrusive). Which geomorphic process/processes do igneous formation belong? A endogenous C. both Á and B В. ехogenous D. neither A or B