28 T F The Principle of Original Horizontality means that layers of sediments ar

Question

28 T F The Principle of Original Horizontality means that layers of sediments are generally 29 T F The major layers of the Earth from surface downwards 3 T F | Rhyolite ha deposited in a horizontal position. Sedimentary rocks that not horizontal at the present time musthave been "disturbed"bycrusta (tectonic)forcessometime after deposition. are crust, hydrosphere, atmosphere biosphere, core, lithosphere, and mantle. We know that the outer core is liquid because seismic S-waves (secondary pass through the outer core. Younger sedimentary rocks that accumulate on top of older sedimentary rocks demonstrate Steno's relative age dating principle of cross cuting relationships s a chemical composition more similar to granite than to basalt. 31 TF waves) do not 33T F 34 T F Scientists are "guided" by the principle that the universe-egular The crust is mainly made up of mostly oxygen and silicon and the core is made up mostly of · iron and nickel. 35 T F After 5 half-lives, the amount of the original parent radioactive isotope remaining is about 396. 36 T F New oceanic crust is formed only at 37 T F Volcanoes rarely occur along transform plate boundaries. 38 T FLava is magma that reaches the Earth's surface. Lavas typically cool quickly and give rise to rocks with small crystals. Lava flows are a type of extrusive igneous body. c acid (HCI 40 T F Of the minerals calcite, galena, graphite, biotite, halite, and muscovite only calcite has three Section 2 -Multiple choice questions (41-70). Circle the correct answer. Each correct answer is worth 2 points. Answer all questions on the exam and on your Scantron sheet. 41) Which one of the following describes a mineral's response to mechanical impact? A) luster B) cleavage C) color D) density is the youngest 42) Of the geological periods listed below. The A) Permiarn B) Jurassic C) Silurian D) Cambrian

Explanation / Answer

41. B. Cleavage is the mineral response to mechanical impact. Because if there are any weak bonds they break.

42. Jurassic is the youngest of all the periods in the list. Cambrian is the oldest and next follows silurian and then Permian and the youngest is Jurassic.

Related Questions

Navigate

• Browse (All)
• Browse 2
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.