Answer:
The great varieties of minerals on the Earth are classified by mineralogists into a small number of groups on the basis of : The negative ion or ionic group in their chemical composition.
Explanation:
Minerals are classified based on their chemical properties. The anion, a negatively charged ion that generally comes at the end of a mineral's chemical formula, is the fundamental foundation for classifying minerals, with the exception of the native element class. Cations are ions with a net positive charge because they have fewer electrons than protons. Anions, on the other hand, have a net negative charge because they contain more electrons than protons.
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A seismograph is used and p waves and s waves are used to determine the distance of the waves
Probably c but I’m not sure
The part of China that is mostly grassland and dessert is Inner Mongolia
The answer should be "The diagonals of the parallelogram are congruent"
BTW you labeled your question as geography.... it's geometry so it should be under math...
