Explain the significance of metamorphism taking place below the melting temperature of a rock
By definition, a metamorphic rock can not be formed from melted rock. If a rock melts and re-forms it becomes an igneous rock, not a metamorphic one. Metamorphism occurs when the rock is in its solid state.
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The Köppen climate classification system uses mean monthly and annual values of ________ and ________
Fill in the blank(s) with correct word
"B" type climates generally occur
A. along the equator. B. near the poles. C. along the Gulf Stream. D. beneath sinking air.
In the early days of its colonization, Britain used Australia as a
A) tourist destination. B) prison colony. C) plantation. D) source of natural resources. E) source of slaves.
Deep inside landfills, bacteria decompose organic wastes in a low oxygen environment. This anaerobic decomposition results in a mix of gases called landfill gas, which consists of about 50% ________
A) hydrogen B) methane C) carbon monoxide D) chlorine gas E) argon