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.
Hope this helps! :D
Answer:
In 1999 an American survey, sponsored by the (U.S.) National Geographic Society and others, took precise measurements using GPS equipment. Their finding of 29,035 feet (8,850 metres), plus or minus 6.5 feet (2 metres), was accepted by the society and by various specialists in the fields of geodesy and cartography.
Answer: The answer is C intrusion formed within the magmachamber of a volcano
Explanation:
<span>False, Agriculture greatly alters the composition of the organic content of the soil. The soil nutrients completely depend on the crop that has been grown in this location the prior several growing seasons. Many crops use high levels of nitrogen and phosphorus and therefore leave the soil lacking these nutrients. Reworking the left over material into the soil after the crops helps a little but crop cycling is required to really replenish the soil. This would mean planting crops the add nutrients back into the soil such as legumes.</span>
