Earth Science > EXAMs > EASC 1403Exam EARTH SCIENCES: EASC1403 FINAL EXAMINATION LATEST UPDATE (All)

EASC 1403Exam EARTH SCIENCES: EASC1403 FINAL EXAMINATION LATEST UPDATE

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Part I Multiple Choice questions (2.5 marks for each question, totally 50 marks) I. The dominant rock type in Hong Kong is: a. Sedimentary rock b. Igneous rock c. Metaruorphic rock d. Concrete 2 ... . Cliffs and shore platforms are erosional landforms, caused mainly by a. The erosive power of breaking waves b. Geological faults c. Human disturbance d. Penguins 3. Why is an igneous rock that formed deep within the Earth likely to have large crystals as compared to a volcanic rock? a. The statement is incorrect - volcanic rocks tend to have larger crystals than granitic rocks b. Because the magma cooled slowly and the crystals could grow steadily c. Because the magma cooled quickly as the crystals formed d. Because the gravitational field beneath the Earth's surface is much less and this has a corresponding affect on crystal growth 4. Tungsten ores of the Needle Hill mine are: a. Granites b. Volcanic rocks c. Quartz veins with wolfremite d. Quartz veins with wolfremite and molybdenite 5. The Tolo Channel (NE New Territories) follows the line of? a. A large-scale fold b. A large fault c. A man-made Neolithic excavation d. A glaciated valley 6. The oldest exposed rocks in Hong Kong are of what age? a. Pre-Carubrian (>540 Ma) b. Late Jurassic (-150 Ma) c. Devonian (-400 Ma) d. Early Pleistocene 02 Ma). (Ma = millions of years old) 7. In Hong Kong, which rock type is most commonly associated with the high peaks? a. Sedimentary rocks b. Metaruorphic rocks c. Volcanic rocks d. Granite Page 2 of58. The distribution of Hong Kong's volcanic rocks indicates a. Volcanic eruptions killed the Dinosaurs b. There were many active volcanoes in Hong Kong's geologic past c. There will be future volcanic eruptions in Hong Kong d. Eruptions in mainland China affected Hong Kong in the past 9. The main objective of the rehabilitation of a quarry site (opencast mine) is to: a. Establish a self-sustaining ecosystem that is typical of Hong Kong b. Only create a piece of land that has high dollar value for future sale by the g [Show More]

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