Continental Crust is the topmost solid layer of a rocky planet or natural satellite in geology. The material it is made of is chemically different from the layer below it called the mantle. The continent of the world divided into continents is widespread of land which is seen apart from the sea on earth. There are no clear criteria to express the continent. Different civilizations and scientists have given different definitions of the continent. But the general opinion is that a continent is a very large area of the earth whose boundaries can be clearly identified. Let's check yourself with the Continental Crust quiz test.
1. Continental layer is sometimes called 'sial' because its bulk composition richer in____________..
A. Silicates
B. Aluminum minerals
C. Silicates & Aluminum minerals
D. Silver, Silicates & Aluminum minerals
2. Earth crust made out of which material?
A. Silicon, iron
B. Magnesium
C. Aluminum
D. All of the above
3. How much thickness of earth crust?
A. 1-2 miles
B. 2-3 miles
C. 3-5 miles
D. 6-8 miles
4. Temperature of the earth crust varying between___________.
A. 90 °F to 1,80 °F
B. 900 °F to 1,000 °F
C. 900 °F to 1,800 °F
D. 100 °F to 1,0000 °F
5. The crust is made of __________ rocks and minerals.
A. Solid
B. Magma
C. Ash
D. Iron
6. Continental crust made up of which type of rock?
A. Sedimentary rocks
B. Metamorphic rocks
C. Igneous rocks
D. All of the above
7. About what % of the volume of the Earth's crust is the continental crust?
A. 50%
B. 60%
C. 70%
D. 80%
8. Most continental crust is dry land above ____________ level.
A. Mount
B. Plateau
C. Sea
D. None of these
9. Which ocean known as the Ring of Fire due to continental crust?
A. Pacific Ocean
B. Indian Ocean
C. African ocean
D. American ocean
10. How much percentage silica present in Earth's crust?
A. 20.7 percent
B. 26.7 percent
C. 27.7 percent
D. 28.7 percent
11. Which element is found in the crust?
A. Oxygen
B. Silicon
C. Almunium
D. All of the above
12. How much percent of minerals are found on Earth's crust?
A. Almost 100% of the minerals
B. Almost 99% of the minerals
C. Almost 90% of the minerals
D. Almost 09% of the minerals
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