Please circle the alphabet corresponding to the right option 1. The earth is cre
ID: 299893 • Letter: P
Question
Please circle the alphabet corresponding to the right option 1. The earth is created by debris left over from the formation of the Moon b. Jupiter c. Ursa Major d. Sun e. North Star a. 2. The center of the earth is called a. core b. crust c. mantle d. plate 3. The two heaviest elements that sink down to form the core are Silicon and helium b. Iron and Nickel c. Oxygen and carbon d. Helium and oxygen e. Silicon and oxygen (core is not made of lead reasons will be mentioned in class) a. 4. This buoyant rock appears on the surface of the earth that will form the basis of continents is a. Quartz b. Marble c. Sandstone d. Granite e. Shale 5. is like a raft of rock light enough to float on the mantle. Kapvaal found in South Africa almost twice the size of Texas. b. Crater a. Craton c. Sugar d. Cartoon e. Carton 6. The surface of the earth is called a a. Mantle b. Core c. Cake d. Crust e. Atmosphere The earth's crust is made up of a giant jigsaw of interlocking pieces called Oxygen b. Porcelain plates c. Tectonic Plates d. Paper plates e. No plates it is a complete whole 7. a. 8. This is the middle layer of the structure of the earth. Plates sit on the Crust b. Mantle a. c. Core d. Atmosphere 1-2/2 ???? B 55 ???? ?? ???Explanation / Answer
Answer 1:
e. Sun. About 4.6 billion years ago a supernova created massive debris. A huge part of this dust and debris came together to form the Sun. The cloud of debris that did not form the Sun, began orbiting around the sun and soon formed different planets with their own unique orbits around the sun.
Answer 2:
a. Core. The Core of the earth is divided into an outer and an inner core. This core is where the earth gets its magnetic field and it is also the most dense part of the Earth with a density that ranges from 9.9 g/cubic centimetre (outer core) to 13 g/cubic centimetre (inner core).
Answer 3:
b. Iron and Nickel. The earths’ core also has smaller amounts of platinum, uranium and gold along with a high content of Sulphur.
Answer 4:
d. Granite.Granite is one of the most common igneous rocks known to be found across the continental crust of the earth. Note: Do not confuse this answer with sandstone since sandstone is formed majorly from sedimentary processes. Quartz and marble are actually formed majorly by metamorphism while Shale is another sedimentary rock which does not actually form the crust of the earth.
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