EARTH AND LIFE SCIENCE : GRADE 11
Directions: 1. True or False. Write Tif the statement is expressing correct idea and F if the statement is wrong. Write your answer in your notebook.
1. Frictional heating is considered as the highest source of Earth's internal heat.
2. The process of growth through gradual accumulation of layers is called formation.
3. Oceanic tides drive the Earth's internal heat.
4. The temperature of the Earth increase as the depth increases away from the core.
5. Endogenic processes is associated with energy coming from the interior of the Earth.
6. One of the laws of Thermodynamics states that heat flow from hot to cold.
7. In the Earth's history, formation of moon happened after the bombardment of asteroid.
8. Radioactive elements are considered as the least contributor of heat.
9. The geothermal gradient of Earth is about 15° to 30°C per km within the mantle.
10. The estimated temperature of the core is about 6000°C.
11. Aluminum is the most abundant element present in magma.
12. Magma rises toward Earth's surface because it is less dense than the surrounding rocks.
13. Andesitic is more viscous than felsic magma.
14. Decompression melting involved
temperature reduction.
15. Temperature is considered as the most important factor in the formation of magma.
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