Question of the Day

Question of the Day - Question of the Day The present is...

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Question of the Day “The present is the key to the past” is an example of a) hypothesis b) Theory c) Model d) Guiding principle in the interpretation of the rock record Answer: D Which statement below best describes the Earth system? A) Earth’s core, mantle, and crust B) Earth’s oceans, atmosphere and climate C) All parts of our planet and all their interactions, taken together D) The geologic evidence for continental drift Answer C What is the difference between the crust and the lithosphere? d) The crust is a compositional layer that forms the upper part of the lithosphere. The most definitive characteristic of a mineral is its: A color B chemical composition C Crystal structure D hardness Answer C SiO 4 is the chemical formula for 2 of the 3 following choices. Which one is it not? A) Quartz B) The basic building block for all silicate minerals C) An ionic cluster of silicon and oxygen with a negative charge of 4 Answer A Plutonic igneous rocks- which statement is not correct? A) Crystallize slowly at depth
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Question of the Day - Question of the Day The present is...

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