George washington was the first president
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:
Wheat, Sugar, Soyabean and citrus fruits.
Explanation:
Agriculture consist of 54% of the economy market share Latin America's agricultural sector is less developed as compared to that of the Industrial sector. As there is an unequal distribution of landholdings. Latin America produces a diverse range of agricultural products such as coffee tea, coca banana, soya, and beef. Brazil and Argentina produce about 16% of the world's food and agriculture products. Brazil alone exports about 37% of the agricultural products. Most Latin American production comes from small farmer's produce. Exports of sugar, citrus fruits and coffee are of high export value to north America.
Air pollution<span> is by far the most harmful form of </span>pollution<span> in our </span>environment<span>. ... deodorants and insect repellents cause </span>severe<span> damage to the Earth's </span>environment<span>.</span>
