61⟩ Why does a glacier move?
It moves because the huge pressure of the ice and snow lowers the freezing point of its lower layers, causing them to melt.
Geology
Home Education and Science Geology
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67 Geology Questions And Answers
62⟩ What is difference between minor and major minerals?
63⟩ Which type of rock is critical for the formation of geysers?
Liquid rock is needed for geysers to form in the form of what is called magma - which is the geological name for liquid rock. Without that, you cannot get geysers forming.
64⟩ Which carbonate mineral reacts readily with cool dilute hydrochloric acid to produce visible bubbles of carbon dioxide gas?
Many carbonate minerals will do this. However since this is a chemistry homework question - I'm guessing for GCSE - then almost certainly the answer they are looking for is calcium carbonate, because this equation often needs to be learnt and then perhaps balanced in an exam question.
65⟩ What is u.n.f.c?
1. The United Nations Framework Classification (UNFC) for energy & Mineral Resources is a universally applicable scheme for classifying/ evaluating energy and mineral reserves & resources. Most importantly, it allows a common and necessary international understanding of these classifications/evaluations. The Classification is designed to allow the incorporation of currently existing terms and definitions into this framework and thus to make them comparable and compatible.
2. UNFC aims the use of a three-digit code clearly indicating the essential characteristics of extractable energy and mineral commodities in market economies, notably (i) degree of economic/commercial viability; (ii) field project status and feasibility; and (iii) level of geological knowledge.
66⟩ What is migmatite?
Migmatite is a rock that is a mixture of metamorphic rock and igneous rock. It is created when a metamorphic rock such as gneiss partially melts, and then that melt recrystallizes into an igneous rock, creating a mixture of the un-melted metamorphic part with the recrystallized igneous part.
67⟩ What is the purpose of dams?
electricity
irrigation reservoir
flood control
human consumption
recreation
navigation
industry
