Placer mining - Study guides, Class notes & Summaries

Core - ANSWERSInnermost zone of earths interior composed mostly of prayer and nickel it includes a liquid outer layer and a solid inner layer Mantle - ANSWERSLayer of earth above the court containing magma Magma - ANSWERSMolten rock Asthenosphere - ANSWERSLayer of earth located in the outer part of the mantle composed of semi-molten rock Lithosphere - ANSWERSOutermost layer of earth including the mantle and crust Cruat - ANSWERSIn geology the chemically to stink outermost layer of...

1. population composed of all individuals that belong to the same species and live in a given area at a particular time 2. community incorporates all of the populations of organisms within a given area 3. population ecolo- gy the study of factors that cause populations to increase or decrease 4. population size the total number of individuals within a defined area at a given time 5. population densi- ty 6. population distriu- tion the number of individuals per unit area (or v...

Which of the following is a gem variety? Assignment 1️️demantoid A substance that consists of atoms of only one kind is a. Assignment 1️️chemical element Which of the following is an organic gem? Assignment 1️️amber Many colored stones are mined by. Assignment 1️️independent miners using small-scale mining methods. Which group does almandine belong to? Assignment 1️️Garnet Synthetic gem materials. Assignment 1️️Are not mineral A broad gem category based on chemical...

By what date had Kokichi Mikimoto begun culturing whole pearls️️1908 Synthetic gem materials️️Are not minerals which of the following is an organic gem️️amber which of the following is amorphous️️amber a natural material that's made up of a mass of one or more kinds of mineral crystals is️️rock what group does alamandine belong to️️garnet A gem produced by, or derived from, a living organism is️️organic which of the following is a gem variety️️demantoid t...

Short Answer Answer Quiz 1: Intro, Structure of the Earth, Continental Drift, Plate Tectonics Version 1 1. Study the images below, showing the distribution of earthquakes, volcanoes, and bathymetry. a. What type of plate boundary is represented? Convergent b. Briefly explain your answer using the evidence/data in the images It is convergent since all volcanic arcs are on the one side while the boundary is on the other. Convergent plate boundary occurs either with ocean-ocean or ocean-...

MANAGEMENT 1202 Eng Geo_3 QUASTIONS AND ANSWERS WITH 100% PLEASANT ANSWERS PART A In general, igneous rocks: A. form at relatively high temperatures B. form by crystallization of solids from a liquid C. form at high and low pressures D. all of the above Metamorphic rocks are changed rocks. Which of the following rock types could be the "parent" of a metamorphic rock? A. sedimentary B. igneous C. metamorphic D. 1. The approximate density of the earth is a) 5.5 b...

MANAGEMENT 1202 Eng Geo_3 QUASTIONS AND ANSWERS WITH 100% SATISFACTORY ANSWERS PART A In general, igneous rocks: A. form at relatively high temperatures B. form by crystallization of solids from a liquid C. form at high and low pressures D. all of the above Metamorphic rocks are changed rocks. Which of the following rock types could be the "parent" of a metamorphic rock? A. sedimentary B. igneous C. metamorphic D. 1. a) 5.5 b) 5.8 c) 5.1 d) 5.2 2. Flat-...