When silicon atoms bond, then silicates form which are minerals in which such elements as potassium, calcium, magnesium and aluminum combine with the silicon atoms to form minerals like feldspars of different types or if it is just silicon and oxygen that bond then it forms quartz.
Answer:
This is the best explanation for why there is such a small amount of phosphorus that moves into aquatic systems:
1. Phosphorus is highly stable in the atmosphere and remains there for long periods of time.
Explanation:
The phosphorus first cycle is the process by which the phosphate ion passes in very small amounts through the lithosphere from volcanic aeorosols, then to the hydrosphere, where it stays from 20,000 to 100,000 years in the ocean, and finally to biospherere, where rain and erosion helps washing the phosphorus from the rocks into the soil. So, raining is the beginning of the phosphorus´s second cycle, so it is also, the slowest one of the matter cycles that is why the natural total background phosphate levels in several bodies of freshwater range from 0.005 to 0.05 mg/L. Phosphorus remains mostly on land and in rock and soil minerals.
Although abundant on our planet´s sedimentary rock crust and in human body, phosphorus to commercialize is only found in minerals therefore, phosphates mining activity and calcium heating is the only way to get it in its pure elemental form. It is an essential nutrient for plants and animals and a big percentage of the mined phosphorus is used to make fertilizers.
Answer:
Usually famine causes angst between the weakened civilation so the owners of said territories usually hunt for more fertile land so they can sustain their growing population without having being thrown out of power and slain, its often better to satisfy the people who you govern rather than to exterminate to govern the population steadily.
and to own more land is more money and more power for such rulers, if they own more land they can tax more people, and if they own fertile land they can grow crops to sustain themselves, and the people they govern, satisfying the ruler AND the people.
Answer:
Ang tao ang katangi-tanging nilalang na may sistema ng paniniwala at ritwal. Tumutukoy ito sa kakayahang magsagawa ng pagsamba. Ang ilan ay tinutukoy ito bilang ang espirituwalidad. Bilang isang grupo, nakikilala ang mga tao batay sa kanilang relihiyosong organisasyon na kinauugnayan.
Ang relihiyon ay ang pagsasagawa ng debosyon ukol sa kinikilala nilang Diyos. Nagkakaiba-iba ito ayon sa:
paniniwala
ritwal
The most dangerous characteristic of a hurricane is the storm surge because the ocean water rises along with the storm tide.
