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21. Coal is mostly made up of ————.materials  

21. Coal is mostly made up of ————.materials  

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10. Which of the mineral below is a KEY MINERAL in low grade…

10. Which of the mineral below is a KEY MINERAL in low grade metamorphism?  

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34. Based on texture which of the following has visible (or…

34. Based on texture which of the following has visible (or coarse crystals)?  

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29. Which of the following does NOT explain whether or not v…

29. Which of the following does NOT explain whether or not volcanoes erupt violently?  

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46. Impurities (such as Pyrite or Clay mineral) in the coal…

46. Impurities (such as Pyrite or Clay mineral) in the coal create ______________  

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41.Dissolution, Hydrolysis and ________________are chemical…

41.Dissolution, Hydrolysis and ________________are chemical weatherings  

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50. Cross-beds form by the movement of sediment dunes and ri…

50. Cross-beds form by the movement of sediment dunes and ripples by wind or water.

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32. Most likely Sulfide ores form as ———————–…

32. Most likely Sulfide ores form as ————————–  

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2. Calderas also form when pyroclast deposits at the summit…

2. Calderas also form when pyroclast deposits at the summit of the volcano puts weight on to emptied magmatic chamber below causing summit to collapse and caldera to form.

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38. Which of the igneous rock below formed from sticky, plas…

38. Which of the igneous rock below formed from sticky, plastic and squashed hot ash and lapilli mixture?    

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